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The 8 Best refrigerant recovery tools of 2025

Are you trying to find refrigerant recovery tools among various brands on the market but aren’t sure where to begin? To assist you in finding the right one, we’ve put together a list of the 7 best to help you pick the perfect one!

We investigated and evaluated a number of the top-selling refrigerant recovery tools on the market in order to create our list of the best. Making a decision among the many options available is never simple. There are an infinite number of models available, each with a distinct price. And as you’ll find out, the best options aren’t usually the ones you imagine! This comparison is rich and relevant because of the numerous factors that were employed. You will find products featured in this ranking not only based on their pricing but also on their features and other customers reviews. To write this review, we completed 29 hours of research and did 44 refrigerant recovery tools tests. You won’t need to pick products at random any more. If you’re unsure of what to look for, browse our list and consult the buying guide!

An overview of our top picks

Table of contents

The best refrigerant recovery tools you can buy today

No. 1
hilmor Refrigerant Recovery Tool
  • Package Dimensions: 1.5 L x 11.5 H x 5 W (inches)
  • Package Weight: 0.55 pounds
  • Country of Origin : China
  • Self adjusting on 1/4" through 1/2" refrigerant copper tubing.
No. 2
Robinair (RG3 Portable Refrigerant Recovery Machine – 115V, 60Hz, for Both Liquid and Vapor Refrigerant, White
  • Compact and lightweight, the RG3 features a 40 percent smaller footprint, is easy to carry, and weighs in at just 18 pounds for superior portability.Cooling method:Compressor
  • Handles almost all refrigerants - the RG3 works with all common CFC, HFC, and HCFC refrigerants including R-410A
  • 1/3 HP, 115V AC, 60 Hz single cylinder, oil-less compressor is capable of recovering both liquid and vapor
  • High efficiency cross flow design features a fan and condenser layout that is optimized for shorter cycle times
  • High pressure safety shut-off switch automatically shuts off machine if pressure rises above 550 PSI
No. 3
VIVOHOME 110-120V AC 60Hz 3/4HP Single Cylinder Portable Refrigerant Recovery Machine Blue
  • PORTABLE AND COMPACT - Compact design makes this ac recovery unit easy to transport while the design has its own eye-catching appearance; Durable and reliable, the VIVOHOME refrigerant recovery machine will quickly become your favorite choice
  • HIGH EFFICIENCY RECOVERY - This compressor has a maximum recovery speed of 3/4 HP that quickly recovers vapor and liquid refrigerants; Guaranteed to deliver an outstanding recovery performance
  • HIGH PRESSURE SHUT-OFF FUNCTION - Equipped with a high-pressure shut-off switch, the machine is safe and reliable to use; When the pressure inside the system is above 38.5 bar, the compressor will automatically shut off to ensure safe operation and protect the machine from damage
  • FILTER DRIER - Comes with a filter drier to remove moisture and acidic substances in the air; The filter is replaceable
  • MULTIPLE USES - This air conditioning recovery unit is suitable for most kinds of refrigerants, including R12, R22, R134A, R401A, R410A, R401C, R406A, R502, etc; It also can be used for a wide number of different automotive units
No. 4
Mastercool 69372 Dual Refrigerant Recovery System – Compatible with R134a & R1234yf, 1/2 HP Oil-Less Compressor, Dual Manifold Gauge Set, 30 lb DOT Tanks with Float Switch
  • ✅ Complete Recovery System for R134a & R1234yf – Engineered to recover both R134a and R1234yf refrigerants, making it ideal for a wide range of automotive A/C systems. Includes a dual brass R134a/R1234yf manifold gauge set and all necessary accessories for immediate use.
  • ✅ Spark-Free Components for Maximum Safety – Built with spark-free components, ensuring safe operation with flammable refrigerants while complying with industry safety standards for automotive A/C recovery.
  • ✅ Powerful Dual-Piston Oil-Less Compressor – Equipped with a 1/2 HP oil-less compressor, featuring a dual-piston design that delivers high recovery rates, while reducing weight and footprint for easier transport.
  • ✅ Dual 30 lb DOT Tanks with Float Switches – Includes two 30 lb DOT-approved tanks (one for R134a, one for R1234yf) with built-in float switches that automatically stop recovery at 80% capacity, preventing overfilling and ensuring safe operation.
  • ✅ High-Efficiency Fan and Oversized Condenser – Designed with the largest fan and condenser on the market, providing exceptional cooling efficiency and maximum recovery rates, even in high-temperature working environments.
  • ✅ Dual Manifold Gauge Set for Precision Monitoring – Comes with a brass dual-gauge manifold set, allowing technicians to monitor high and low pressure for both refrigerant types in real-time.
  • ✅ Durable & Portable Design for Technicians On-the-Go – Rugged, compact housing ensures long-lasting durability, while built-in handles and lightweight construction make it easy to transport between job sites.
No. 5
Kathlen Refrigerant Recovery Plier - Air Conditioner Refrigerant Recovery Refrigeration Tube Locking Plier
  • About Air Conditioner Refrigerant Recovery Pliers: Drill the cooling tube and recover the old coolant instantly.
  • Easy To Use:1/4 inch interface.This recycling clamp needs to be connected to the refrigerant recycling machine.
  • Premium Material:Refrigerant Recovery Plier made of high quality steel material, the pliers are sturdy and durable.
  • Function: Refrigeration Line Locking Pliers Tool,which can be used to puncture refrigeration pipes and instantly recover old refrigerant.
  • High Working Efficiency: Air-conditioning refrigerant recovery refrigeration pipe locking pliers to improve work efficiency.
No. 6
Refrigerant Recovery Plier, Sturdy Air Conditioner Refrigerant Recovery Refrigeration Tube Locking Plier With 1/4 Inch S A E Interface
  • AIR CONDITIONING PLIERS: Locking Plier, Refrigeration tube locking pliers are made of high quality steel and are sturdy and brand new and high quality. Can be used to puncture refrigeration pipes to instantly recycle old refrigerant
  • HIGH-QUALITY TUNGSTEN NEEDLE DESIGN: Refrigerant Recovery Tool, The pliers are made of high-quality chrome-vanadium steel, which can clamp pipes up to 8mm in diameter, and can be recovered quickly and easily.
  • PRODUCT FEATURES: Refrigeration Tube Locking Plier, Refrigerant recovery pliers snap into refrigerant lines and puncture large holes for immediate and maximum full to recovery unit
  • CLAMP-SHAPED DESIGN: Refrigerant Recovery Plier, The air-conditioning refrigerant recovery clamp is ergonomically designed for a better user experience. It can easily bite through 1mm thick copper pipe and supports up to 8mm pipe diameter
  • 1/4" SAE PORT: Air Conditioner Welding Hand Tools, Air conditioning refrigerant recovery pliers are easy to use, 1/4" SAE port. Adjustable nut on the tail to control force and save fatigue
No. 7
VEVOR Portable 3/4 HP Refrigerant Recovery Machine - AC Recovery Machine with High Pressure Protection 120V 60Hz Recovery Machine HVAC for Vapor Liquid Refrigerant, Car Air Conditioning
51 Consomer Reviews
VEVOR Portable 3/4 HP Refrigerant Recovery Machine - AC Recovery Machine with High Pressure Protection 120V 60Hz Recovery Machine HVAC for Vapor Liquid Refrigerant, Car Air Conditioning
  • High-Efficiency Recovery: The 3/4 HP brush motor refrigerant recovery machine swiftly recovers vapor and liquid refrigerants at a maximum rate of 4.85lb/min. Equipped with an efficient fan and condenser, it provides stable, strong, and long-lasting performance for professional-grade applications.
  • Small in Size, Powerful in Function: Look no further than our lightweight 29.5 lbs recovery tool, perfect for servicing different refrigeration equipment! Get ready to recover a range of refrigerants, including R134A, R22, R12, R410A, R404A, R502, etc.
  • High-pressure Protection: Accurate pressure gauge can precisely monitor the pressure. When the pressure reaches or exceeds 38.6 bar/558 psi, the portable ac recovery machine automatically stops the recovery to ensure safe operation throughout the recovery process.
  • Self-cleaning without Residue: After each use, simply turn the knob to the PURGE position. This will activate the freon refrigerant recycling machine's self-cleaning function, which safely discharges any leftover refrigerant into the recovery tank. Additionally, This reduces the risk of machine damage from expansion.
  • More Purer, More Safer: With its reusable and easy-to-clean filter screen, this dryer efficiently blocks impurities from entering the intake port and ensures that the refrigerant is moisture-free to prevent oxidation and rusting. Regular replacement of the dryer is advised to maintain the purity of the recovery process.
SaleNo. 8
Elitech LMC-100A+ 220Lbs Refrigerant Scale Electronic Freon Charging Recovery Weight Scale for HVAC with Case
  • ACCURATE & RELIABLE: Our LMC-100A+ refrigerant scale boasts a capacity of up to 220lbs (100kg), with an accuracy of ±0.05% readings +10g. Choose between 3 units: Kg/Lb/Oz.
  • DURABLE & PORTABLE: The scale's high-quality Aluminum alloy construction ensures ruggedness and durability, while the included heavy-duty carrying case makes it easy to transport to job sites.
  • CONVENIENT DESIGN: The extra-large LCD display with background light and slip-resistant 9" x 9" weighing platform provide clear readings, while the longer-lasting 9V battery powers up to 30 hours.
  • COMPATIBLE WITH ALL REFRIGERANTS: With compatibility for all refrigerants and all-sized popular refrigerant tanks, our freon scale is perfect for use in a variety of applications. Plus, the backlight on the remote allows for easier reading in dark environments.
  • EXPERT SUPPORT: Our US-based customer service team is available 24/7 to help with any technical questions via email or phone. Trust in our refrigerant freon scale for accurate measurements every time.
No. 9
Robinair RG6 Portable Refrigerant Recovery Machine - 115V AC, 60 Hz
  • Easy to operate Twin-Cylinder Design provides best-in-class* recovery performance and features a rugged case, oversized pressure gauges, comfortable handle, and simple controls
  • Handles almost all refrigerants - the RG6 works with all common CFC, HFC, and HCFC refrigerants including R-410A
  • 3/4 HP, 115V AC, 60 Hz twin-cylinder, oil-less compressor is capable of recovering both liquid and vapor
  • Equipped with oversized condensers and fan to ensure maximum cooling performance and shorter cycle times. Dimensions-17 L x 9 W x 12 H inches
  • High pressure safety shut-off switch automatically shuts machine off if pressure rises above 550 PSI; self-purge feature eliminates potential for cross-contamination and saves time
No. 11
Air Conditioner Welding Hand Tools, Refrigerant Recovery Refrigeration Tube Locking Plier Refrigeration Tube Steel Locking Plier Tool
  • SCOPE OF APPLICATION: Puncture the refrigeration tube and recover the old refrigerant instantly.
  • SIMPLE OPERATION: This recovery plier is easy to use and has 1/4 inch SAE interface.
  • MAKING MATERIAL: Made of high quality steel material, the plier is sturdy and durable. Snap on refrigerant line and punctures large hole for immediate and maximum full fl ow to recovery unit.
  • Scope of Application: Instantly drills through the inflation tubes of any refrigerator and cold storage. The system can be vented or inflated simply by drilling through the pipes. After the repair is complete, use the clamps behind the repair drilling pliers to pick up and weld.
  • SATISFACTION GUARANTEE: We care for all customer's feeling and if this product can not meet or exceed your expectations, you can get in touch with customer service.
No. 12
Hilmor 1950536 Brushless DC Refrigerant Recovery Machine, HVAC Tools and Equipment, Professional Use, 9.6" x 5.4" x 13.3", Black
  • HVAC RECOVERY MACHINE: Incorporating state-of-the-art Brushless DC motor technology, this AC recovery machine achieves a remarkable balance, offering both lightweight portability and formidable power
  • DIGITAL LCD SCREEN: Elevates user experience by offering precise and easily readable information, its accuracy and clarity simplify operation, ensuring seamless monitoring and control throughout tasks
  • HANDS FREE CARRY: With its built-in hoist points, this recovery machine enables hands-free carrying and effortless transportation, enhancing convenience and efficiency on the job
  • CONVENIENT STORAGE: The integrated power cord wrap feature adds a layer of convenience by offering a hassle-free solution for storing the cord neatly
  • IDEAL SIZE: With dimensions of 9.6" x 5.4" x 13.3", this machine strikes the ideal balance between compactness and functionality, making it suitable for a wide range of jobs
No. 13
JIFETOR AC Refrigerant Recovery Machine Unit for Recycling Liquid and Vapor Refrigerant, Portable Refrigerant Recycle Tool for Automotive Air Conditioner and Household HVAC, 3/4HP Oil-Less Compressor
  • HIGH CONFIGURATION : Refrigerant recovery machine is equipped with 110-120V 60HZ single cylinder, 3/4HP 1750rpm speed motor, oil-less air-cooled compressor, can recycle liquid and vapor refrigerant in refrigerating machinery quickly. The large condenser and fan with optimized cross-flow layout design ensure maximum cooling performance, shorter cycle time and faster recovery speed. With filter drier & screen, the refrigerant can be processed with drying and impurity filtering for future reuse
  • MULTIFUNCTIONAL: Portable refrigerant recovery equipment has 3 operation methods: conventional recovery method for liquid and vapor refrigerant, liquid push/pull method and self-purge method. When liquid refrigerant recovery is over 10kg, push/pull is recommended. Self-purge function allows for a thorough internal cleanup, removing the residual refrigerants to avoid damage to the components. Completely evacuated of refrigerant and purged with dry nitrogen are recommended for a long time storage
  • WIDE APPLICATION: High durability refrigerant recycle unit with oil-free compressor has no pollution from lubricants, making it universal for Category III, IV, V refrigerants. Widely used on auto, household, commercial appliances (air conditioner, freezer, heat pump unit, etc). Not for explosive, flammable or corrosive refrigerant
  • OVERLOAD & HIGH PRESSURE MULTIPLE PROTECTION: Built-in blue input gauge (LP) and red output gauge (HP) have clear scale for easy observation at anytime. The input pressure of the unit should not exceed 377psi. Benefited from internal high pressure shut-off switch, the compressor will automatically shut off when the internal pressure is above 558psi (With auto-reset function when the pressure is lower). There is also an overload protector, if poping, reposition the breaker switch after 5 mins
  • HUMANIZATION DESIGN: Compact and sturdy housing, relatively light (only 13.5kg) with comfortable handle, the refrigerant recycling machine is portable to carry or store. Non-slip foot pads protect the bottom of the tool from friction and liquid erosion while ensuring stability. Equipped with 1/4" Male flare input and output connectors, compatible with common 1/4" SAE Female connectors. One durable metal knob to operate 4-step work cycle RECOVER SLOW, RECOVER FAST, PURGE, OFF. Very convenient
No. 15
MuChaIOAK Refrigerant Recovery Machine, Double Cylinder Refrigerant Recycling Machine, Refrigerant Recovery Machine Unit Tool Kit for Both Liquid and Vapor Refrigerant
  • 【Efficient Recovery】The performance of this two-cylinder refrigerator recovery machine is much better than that of a small compressor. IIts recovery rate for the gaseous state can reach 0.25kg/min, for the liquid state can reach 1.8kg/min, and for push-pull mode can reach 6kg/min.
  • 【Three Operation Modes】Portable freon recovery equipment has three modes of operation: refrigerant recovery mode (conventional recovery of vapor and liquid refrigerant), system push and pull mode (rapid recovery of more than 10kgs liquid refrigerant), and system self-purge mode (remove residual refrigerant).
  • 【Oil-free Compression Technology】It adopts oil-free compression technology, which is not only compatible with a variety of refrigeration oils but also avoids the pollution of lubricating oil. And such technology can also make it have a longer life without regular maintenance.
  • 【Self-clearing Function】It has a self-cleaning function, This two-cylinder refrigerator recovery machine is widely used in ship refrigeration equipment, heat pump refrigeration equipment, central air conditioning refrigeration equipment, cold storage refrigeration equipment, etc.
  • 【Wide Application】The AC refrigerant recovery machine can be widely used to recover liquid and vapor refrigerant such as Category III, IV, V refrigerants, which widely used in automotive household and commercial air conditioning systems, refrigerators, freezers, dehumidifiers, heat pump units and other refrigerable equipments.
No. 16
Maxmartt Air Conditioner Welding Hand Tools, Refrigerant Recovery Refrigeration Tube Locking Plier Refrigeration Tube Steel Locking Plier Tool
  • ♛ 【Premium material】: Refrigerant Recovery Plier made of high quality steel, strong will not rust, service life is very long.
  • ♛【Improve efficiency】: Air Conditioner Refrigerant Recovery Refrigeration Tube Locking Plier,Improve work efficiency.
  • ♛【Easy to use】: The refrigeration tube locking plier easy to use, 1/4 inch SAE interface.Pierce the refrigeration pipe and immediately recover the old refrigerant.Puncture the refrigeration tube and the old refrigerant instantly. provides maximum locking force.
  • ♛ 【Function】: Refrigeration tube locking plier, can be used to Puncture the refrigeration tube and recover the old refrigerant .
  • ♛【Instantly Reminder】: This recovery pliers needs to be connected to the refrigerant recovery machine to use.Snap on refrigerant line and punctures large hole for immediate and maximum full fl ow to recovery unit.
No. 17
Oubit Air Conditioner Refrigerant Recovery Pliers with 1/4" SAE Interface, Durable Efficient and Eco-Friendly Tool for Refrigeration Tube Locking and Recovery
  • Instant Recovery: Effortlessly puncture and recover old refrigerant from tubes with our durable plier, streamlining your HVAC maintenance tasks.
  • User-Friendly Interface: Equipped with a standard 1/4" SAE interface, these pliers are designed for easy connectivity and universal compatibility, making them a must-have tool for air conditioner repairmen.
  • Durable Construction: Crafted from premium steel, our refrigerant recovery pliers boast exceptional durability and longevity, ensuring they stand up to the rigors of continuous professional use.
  • Efficiency Boost: Engineered to optimize your working efficiency, these pliers save time and energy while also promoting environmental protection with precise refrigerant recovery processes.
  • Quality Assurance: Experience the confidence of a 100% brand new, high-quality refrigerant recovery plier that meets stringent industry standards, backed by our commitment to your satisfaction.
No. 18
R410A AC Refrigerant Charging Hoses, 59“ HVAC Charging Hose with 1/4’’ SAE Female Flare, 800PSI Working Pressure for R410A R22 R134A R12 R502 Air Condition System Maintenance
  • [WIDE APPLICATION] The ac hose with low loss fittings good for R410a and most other refrigerants like R22, R134a, R12, R502.
  • [HIGH WORKING PRESSURE] The working pressure of R410 Refrigerant Charging hoses can get 800PSI, burst pressure 4000 PSI.
  • [WELL DESIGN] HVAC Hose designed to features with 45 degrees angle on the service port site for easier access, thread size 1/4’’ SAE male and female flare. Meet 1/4" SAE Requirement for Refrigerant Permutation.
  • [PREMIUM QUALITY] The ac charging hose made of brass and rubber, premium refrigerant charging hoses last long; easy to operate and install, strong sealing for durability and safety.
  • [PACKAGE INCLUDE] 1Pc x R410 AC Charging Hose. If you have any problem or concerns, feel free to contact us.
No. 19
Flame King YSNR501 50 Pound Refrigerant Recovery Cylinder Tank , Gray
  • Powder coated cylinder for high gloss, durable finish; 50 Pounds
  • Y-valve for liquid/vapor
  • 3/4 inches NPT opening accepts 80 percent fill float switch shut-off device
  • Collar design for ease of handling
  • Reusable and conforms to DOT-4BA-400 specifications and ARI guidelines
No. 20
6 Pieces 6015 R134A Brass Refrigerant Tank Adapter to R12 Fitting Adapter 1/2 Female to 1/4 Male Flare Adaptor Valve Core and 6014 Vacuum Pump Adapter 1/4 Inch Flare Female to 1/2 Inch Male
  • You will receive: 3 sets are total of 6 pieces, including 3 pieces 6014 vacuum pump adapter and 3 pieces 6015 R134A refrigerant tank adapter, more convenient for you to use
  • Practical adapters: these tank adapters are as charging and service tools, can be applied to vacuum pump, can tap or oil injector to adapt between R12, R22 system and R134A systems
  • Function feature: these tank adapters provide a tight, secure, leak-free connection that allows you to quickly and easily connect and disconnect high flow
  • Solid brass construction: these tank adapters are made of solid brass, sturdy to use, corrosion resistant, not easy to rust, you can use them for a long time
  • Size details: the size of 6014 vacuum pump adapter is approx. 2.6 x 1.6 x 4.4 inches, the size of 6015 R134A refrigerant tank adapter is approx. 2.6 x 1.6 x 4.4 inches, please check the size carefully before purchasing

How to choose a good refrigerant recovery tools

Does the idea of finding a fantastic refrigerant recovery tools make you anxious? When it comes to purchasing this product, specifically when deciding which model to select, has your head been spinning between options? You are not alone if that is the case. We are aware of the pressure involved in the purchasing process!

Your presence here indicates that you are interested in refrigerant recovery tools. Before choosing which product would be the best for your needs after being inundated with information, locate a reliable source with genuine selections. You can get that information from a variety of sources, including buying guides and rating websites, word-of-mouth recommendations from friends and family, online discussion forums where users can share their own experiences, product reviews that can be found all over the internet, and YouTube channels. You can only get the right product through exhaustive analysis. But you realize that’s not always simple. In order to ease your concerns, we have taken the time to develop a list of the top refrigerant recovery tools products available right now. You might be wondering how we came up with the list. How was this buying guide developed?

First, we used our algorithms to gather as much reliable data as we could about these products. To verify all the data gathered, we used both artificial intelligence and a lot of algorithms.
Then, our experts used criteria that are recognized in the business to evaluate them according to their quality to price ratio, allowing us to choose the top refrigerant recovery tools on the market right now!

The selection of the goods is not arbitrary. Before creating a list, we take into account a number of factors. Below are some of the criteria discussed:

Brand Value: What happens if you choose a dubious brand just because it appears to be a good deal? So the likelihood of receiving a product with a short shelf life increases. That is due to the fact that well-known brands have a reputation to uphold, while others do not. Top refrigerant recovery tools brands strive to provide some distinctive traits that set them apart from the competition. So, hopefully one or more of the items on our list will be perfect for you.

Features: Useful features are all you need, not tons of them. We consider the important aspects and select the top refrigerant recovery tools based on those.

Specifications: Numbers always help you measure the quality of a product in a quantitative way. We try to find products with higher specifications, but with the right balance.

Quality: A product’s quality may always be quantified with the aid of numbers. We look for goods with better standards that strike the proper balance. The best quality product that gets highly appreciated and recommended by experienced users.

Customer ratings:  Would it be accurate to suggest that the refrigerant recovery tools were used by hundreds of customers before you? Superior ratings indicate that many customers had better service.

Customer Reviews: Like ratings,  provide you with accurate and reliable information about the product from genuine customers. Customer ratings are very important to all of us because they contain accurate and reliable information about the customer service we received from several hundred customers.

Seller Rank: This is very intriguing! Not only do you need a good refrigerant recovery tools, you also need a product with rising sales that is trendy. It accomplishes two goals. First, the expanding user base proves the quality of the product. Second, given that number, producers must be able to offer greater quality and after-sales support.

Value: You get what you pay for, they say, so consider the value. Cheap isn’t always good and expensive isn’t always bad. However, that does not imply that spending a lot of money on a product that is flashy but underwhelming is a good idea. Before adding them to the list, we make an effort to evaluate how much value you can get for your money from your refrigerant recovery tools.

Durability: Durability and reliability are closely related concepts. You will benefit from a strong and long-lasting refrigerant recovery tools for months and years to come.

Product availability: Products come and go, and new ones replace the old ones. Most likely, a few new features and required changes were made. What use is it to use a supposedly good product if the maker no longer supports it? We make an effort to highlight products that are current and offered by one or more trustworthy sellers, if not more.

Negative Reviews: Yes, we do take that into account as well! The goods with the majority of bad reviews are filtered out and disregarded when we choose the best-rated one on the market.

These are the standards by which we selected our refrigerant recovery tools. Do we end our process there? Hell no. The most crucial fact about us that you should be aware of is that we regularly update our website with current and pertinent information. We have one more layer of filtration since we place the greatest importance on reader satisfaction. Please let us know if any product included here is incorrect, irrelevant, subpar, or simply out of date. We always value your opinions, and we’ll work hard to make any necessary corrections to our list in response to them.

Why should you believe us?

There are now thousands of possibilities for these products on Amazon, but choosing the best one can be difficult and time-consuming. And what refrigerant recovery tools should you purchase in 2022?

This guide is the result of more than 10 years of experience in researching, testing and writing about many topics. Each member of our team is an authority in their area. We read every article we could find online and every consumer review on every retail website for seven hours. Additionally, we discovered a ton of websites that offered helpful resources, including buying tips and thorough information on refrigerant recovery tools.