Are you trying to find compression union fittings 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 compression union fittings 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 10 hours of research and did 24 compression union fittings 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 compression union fittings you can buy today
- High Quality - Our brass compression fittings kit is made of high-quality brass, with strong wear, corrosion resistance, high compressive strength, durability, low magnetic permeability and high temperature ductility
- Widely Use- Brass compression tube fittings meet specifications and standards of ASA, ASME asn SAE. Good sealing and repeatability, temperature and pressure resistance. Perfect fit for oil, gas, water and other non-corrosive or corrosive pipeline systems, no need for welding and flaring tools, easy disassembly, installation and maintenance, etc
- WORKING PRESSURE & TEMPERATURE - 2000 PSI maximum working pressure, temperature range -65°F to +250°F (-53°C to +121°C)
- You Will Get- Brass air line compression fittings contain: 1/8"-4 pcs, 3/16"-4 pcs, 1/4"-4 pcs, 5/16"-4 pcs, 3/8"-4pcs,and 1/2"-2 pcs compression coupling. 1/8"-4 pcs, 3/16"-4 pcs, 1/4"-4 pcs, 5/16"-4 pcs, 3/8"-4 pcs,and 1/2" -4 pcs compression sleeves ferrules. Total 46 pcs Brass Compression Fittings
- Tips- These copper tubing fittings contain lead and are not allowed by federal law to be installed for potable water use in the U.S.A. and its territories
- 【Easy to Install】: MuHize compression fitting is much easier than replacing, bending, and flaring new lines. Compression fittings for copper pipe are easy to disassemble no flaring tool is required. Just make sure the cuts to the original lines are clean and these will outlast the rest of the line with no leaks.
- 【Rust-Proof Reliability】: MuHize brass compression union fitting is built to last, protecting your brake lines from corrosion in harsh conditions.
- 【Versatile Compatibility】: This high-quality brass union works seamlessly with copper, brass, aluminum, or plastic tubing, suitable for most automotive applications.
- 【Size & Package Includes】: 3/16" Tube OD x 3/16" Tube OD. MuHize compression Tube Fitting mainly consists of a fitting body with a 24-degree tapered hole, a ferrule with a sharp inner edge, and a nut for compression(pack of 8).
- 【Working Principle】: MuHize compression Tube Fitting is to compress the ferrule by thread interlocking, and the two ends of the inner diameter of the ferrule tightly wrap the tube due to radial shrinkage, which plays a sealing role and realizes the sealing and tightening effect between the joint and the tube.
- 【Excellent Brass Material】- Wear-resistant, corrosion-resistant, non-rusting, high sealability, high compression strength, low magnetic permeability and high temperature ductility.
- 【Working Pressure & Tempreature】- 2000PSI maximum working pressure, temperature range -65°F to +250°F (-53°C to +121°C)
- 【46pcs Brass Compression Fittings】- The Package of Brass air line compression fittings include: 1/8"-4 pcs, 3/16"-4 pcs, 1/4"-4 pcs, 5/16"-4 pcs, 3/8"-4pcs,and 1/2"-2 pcs compression coupling. 1/8"-4 pcs, 3/16"-4 pcs, 1/4"-4 pcs, 5/16"-4 pcs, 3/8"-4 pcs,and 1/2" -4 pcs compression sleeves ferrules.
- 【Application】- Perfectly for oil, gas, water and other non-corrosive or corrosive pipeline systems, no need for welding and flaring tools, easy disassembly, installation and maintenance, etc.
- 【 Profetional Manufacturers 】: Made by Profetional Factory, Materials and products was strictly tested before leaving the factory, This brass compression tube fittings Meet the specifications and standards of ASA, ASME asn SAE
- Brief Description: You'll get 180 pieces of compression fittings including compression sleeve ferrule, Insert and nuts of 4 different sizes for your convenience
- Sizes: 1/4 inches- 20 pcs compression sleeve ferrule, 20 pcs compression insert & 8 pcs nuts. 3/8 inches- 20 pcs sleeve ferrule, 20 pcs insert & 8 pcs nuts. 5/16 inches- 20 pcs sleeve ferrule, 20 pcs insert & 8 pcs nuts. 1/2 inches- 15 pcs sleeve ferrule, 15 pcs insert & 6 pcs nuts
- High-Quality Material: Solid , High Quality and durable brass construction. Lead Free, Corrosion resistance, ductility at high temperatures, and low magnetic permeability
- Easy to Use: These fittings are easy to assemble requiring no soldering, flaring or deburring. Standard Compression Fittings are suitable for a wide variety of applications
- Applications: This brass compression kit can be connected to copper, brass, aluminum, or plastic tubing. No flaring tool is required for assembly. It can keeps plastic tube from collapsing when tightened. And prevent leakage
- Kit contains 6sizes: 1/8"(2 pcs), 3/16"(10 pcs), 1/4"(4 pcs), 5/16"(2 pcs), 3/8"(2 pcs) and 1/2" (2 pcs)compression coupling, total 22pcs.
- Each assortment contains a specific collection of fast moving fittings that should be kept on hand when working with automotive hydraulic braking systems.
- This compression union assortments are designed for specialty and general repair shops.
- Meets specifications and standards of ASA, ASME asn SAE.
- Compression unions for joining copper, brass, or aluminum tubing in low-pressure applications
- Type: Compression Union
- Tube Size:3/16" OD
- Materies: BRASS
- Net Weight: 17.5g/PC
- Choosing products dimensions and quantities at column of size and colour seperately,price would be more favorable if choosing wholesale.
- 【Brass Compression Pipe Fitting】 3/16" OD x 3/16" OD Brass Compression Pipe Fitting x 15PCS.
- 【TEFLON TAPE】 We have prepared TEFLON TAPE in every product for the convenience of our dear customers.
- 【Working Environment】 Operating temperatures range from -65°F to +250°F (-53°C to +121°C), 1200PSI.
- 【Brass Made】 Brass Tank Valve made of CA360 or CA377 brass are extremely resistant to corrosion, both for gases and liquids. Meet SAE standard.
- 【Brass Compression Pipe Fitting】 For Temperature and pressure resistant with good sealing and repeatability. Suitable for connections between oil, gas, water and other non-corrosive or corrosive piping systems. Easy to remove, install and maintain.
- PREMIUM MATERIAL:Our Brass Compression Tube Fittings are made of high quality CA360 brass, with corrosion resistance, high temperature ductility and low permeability. Great for long time use, dot compression tube fitting assortment pneumatic fittings type: 3/8"
- TYPICAL APPLICATION:The brass compression fittings for nylon tubing can be used with air systems, copper tubing in air lines brake systems, which is perfect for automotive car or truck repair or trailers daily parts replacement, air operated seats, operating gauges, air horns, heater controls, industrial workshops, daily garden or lawn mower repair, towing machine hose connection and air brake connections
- EASY TO BE INSTALLED:The compression tubing sleeve connect two tube with same OD. Take out the outer sleeve and insert the nylon tube in, fasten the outer sleeve into the main body again. Make sure the small inside sleeve is kept together with the hose
- MAX PRESSURE: Working pressure from vacuum to 250 psi. Temperature Range: -40° F to +200° F（-40°C to +93°C）(Note: see tubing manufacturer’s recommendations for pressure and temperature mutations)
- PACKAGE INCLUDES:You will receive 4 pcs 3/8" Tube OD Brass Compression Tube Fitting, which can meet your needs of use and replacement, and you can also share them with others
- 【Size】5PCS 3/16" OD compression union tube fittings.
- 【Material】Brass construction, which is corrosion resistance, no leaking, ductility at high, for long-lasting use.
- 【Three Piece Construction】Nut, sleeve and body with attached insert.
- 【Easily Use】Use with copper, brass, aluminum, or plastic tubing. Easy to disassemble no flaring tool required. Installation and maintenance convenient.
- 【Widely Use】This fitting can be used to connect various pipes, such as air pipe, fuel pipe, water pipe as well as air tools. It can also be used with grease, fuels, LP and natural gas, refrigeration, instrumentation and hydraulic systems in low and medium pressure pipe line connections.
- SIZE - 1/4" Tube OD x 1/4" Tube OD, Compression Tube Fitting mainly consists of a fitting body with a 24 degree tapered hole, a ferrule with a sharp inner edge, and a nut for compression.
- MATERIAL - Made of high-quality brass, with strong wear and corrosion resistance, high compressive strength, durability, low magnetic permeability and high temperature ductility.
- Use - Suitable for oil, gas, water and other non-corrosive or corrosive pipeline systems, temperature and pressure resistance, good sealing and repeatability, no need for welding and flaring tools, easy disassembly, installation and maintenance, etc.
- WORKING PRESSURE & TEMPERATURE - 1200PSI maximum working pressure, temperature range -65°F to +250°F (-53°C to +121°C)
- WORKING PRINCIPLE - Compression Tube Fitting is to compress the ferrule by thread interlocking, and the two ends of the inner diameter of the ferrule tightly wrap the tube due to radial shrinkage, which plays a sealing role and realizes the sealing and tightening effect between the joint and the tube.
- PREMIUM SOLID BRASS- 1/4" brass compression fittings kit is made of high-quality brass, with strong wear，corrosion resistance, high compressive strength, durability, low magnetic
- YOU WILL GET- 1/4 in compression fittings contains: 1/4" OD Straight union-4 pcs, 1/4" OD X 1/4" NPT Straight male-4 pcs, 1/4" OD X 1/4" NP 90° Elbow male-4 pcs,1/4" OD Tube tee-4 pcs, 1/4" OD Sleeves ferrules-20 pcs,and Thread seal tape-2 pcs.Total 38 pcs Brass Compression Fittings
- WORKING PRESSURE & TEMPERATURE - The maximum working pressure of compression tube fitting repair is up to 2000PSI , temperature range -65°F to +250°F (-53°C to +121°C)
- WIDELY USE - Brass compression tube fittings meet specifications and standards of ASA, ASME asn SAE. Good sealing and repeatability, temperature and pressure resistance. Perfect fit for oil, gas, water and other non-corrosive or corrosive pipeline systems, no need for welding and flaring tools, easy disassembly, installation and maintenance, etc
- TIPS- These brass compression fittings 1/4" contain lead and are not allowed by federal law to be installed for potable water use in the U.S.A. and its territories
- Three piece construction - nut, sleeve and body with attached insert Use with copper, brass, aluminum, or plastic tubing
- Manufactured for low and medium pressure tubing connection work where excessive vibration or tube movement is not involved.
- Use with copper,aluminum and thermoplastic tub-ing.Not recommended for steel tubing.
- Not recommended for application using gas eous media.
- Meets specifications and standards of ASA, ASME asn SAE.
- Size: 1/4" Tube OD x 1/4" Tube OD.
- Three piece construction - nut, sleeve and body with attached insert.Easy to disassemble no flaring tool required.
- Use with copper, brass, aluminum, or plastic tubing. -65 Degree F to +250 degree F temperature range. Standard fittings use short nuts.
- Brass for corrosion resistance, ductility at high temperatures, and low magnetic permeability
- These fittings contain lead and are not allowed by federal law to be installed for potable water use in the U.S.A. and its territories.
- 【Brass Compression Pipe Fitting】 3/16" OD x 3/16" OD Brass Compression Pipe Fitting x 15PCS.
- 【TEFLON TAPE】 We have prepared TEFLON TAPE in every product for the convenience of our dear customers.
- 【Working Environment】 Operating temperatures range from -65°F to +250°F (-53°C to +121°C), 1200PSI.
- 【Brass Made】 Brass Tank Valve made of CA360 or CA377 brass are extremely resistant to corrosion, both for gases and liquids. Meet SAE standard.
- 【Brass Compression Pipe Fitting】 For Temperature and pressure resistant with good sealing and repeatability. Suitable for connections between oil, gas, water and other non-corrosive or corrosive piping systems. Easy to remove, install and maintain.
- Type: Compression Union
- Tube Size:7/16" OD
- Materies: BRASS
- Net Weight: 43g/PC
- Choosing products dimensions and quantities at column of size and colour seperately,price would be more favorable if choosing wholesale.
- Material: Brass For Corrosion Resistance, Ductility At High Temperatures, And Low Magnetic Permeability
- Widely Used: Widely Used In The Fuel/Air/Lquid/Oil/Gas/Vacuum Lines
- Features: Good Airtightness, Pressure Resistance, Not Easy To Trip
- MAX.Working Pressure is 150PSI;Tempurature Range -65℉~ +250℉
- Package Include：5/16" OD 10pcs Brass Compression Union Tube Fitting
- 3/8" Compression on both ends. Consists of three main parts: olive, main body, and nut.
- Compatible with 3/8" OD copper, PVC, nylon, aluminum, and other thermoplastic tubing.
- Used to repair or extend fuel lines, non-potable water lines, air lines, and brake lines.
- Easy to assemble and disassemble. No soldering and flaring are required.
- Solid brass with high-temperature ductility and low magnetic permeability for long-lasting use.
- 3/8" x 5/16"
- Brass
- Compression Union
- Compression reducing union
- Brass material lasts long
- Not for use in potable drinking water applications
- Use with copper or plastic tubing
- 3/8-Inch compression by 5/16-Inch compression
- Contains 30 Piece 3/16″ Inverted Flare Brake Line Fittings Assortment, which Includes: (10) 3/16″ Short Tube Nuts, (10) 3/16″ Long Tube Nuts, and (10) 3/16″ Unions
- Contains 30 Piece 1/4″ Inverted Flare Brake Line Fittings Assortment, which Includes: (10) 1/4″ Short Tube Nuts, (10) 1/4″ Long Tube Nuts, and (10) 1/4″ Unions
- Contains 5 Piece 3/16″ OD Compression Brake Line Fittings
- Contains 5 Piece 1/4″ OD Compression Brake Line Fittings
- ✅ Pack of two 3/8” OD x 3/8” OD tube fittings
- ✅ Safe to use on copper or plastic water line tubing
- ✅ Hex head on both sides of adapter provide excellent grip during installation
- ✅ High quality and deep threads allow the fittings to bite better providing perfect compression for a leak-free connection
- ✅ Three piece construction - nut, sleeve and body with attached insert Use with copper, brass, aluminum, or plastic tubing, Meets specifications and standards of ASA, ASME asn SAE.
How to choose a good compression union fittings
Does the idea of finding a fantastic compression union fittings 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 compression union fittings. 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 compression union fittings 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 compression union fittings 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 compression union fittings 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 compression union fittings 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 compression union fittings 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 compression union fittings, 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 compression union fittings.
Durability: Durability and reliability are closely related concepts. You will benefit from a strong and long-lasting compression union fittings 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 compression union fittings. 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 compression union fittings 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 compression union fittings.
