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
- đ§ăHigh Quality ă- Our brass compression fittings kit is made of high-quality brass, with strong wearïŒcorrosion resistance, high compressive strength, durability, low magnetic permeability and high temperature ductility.
- đ§ăWidely Useă- 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.
- đ§ăWORKING PRESSURE & TEMPERATUREă - 2000 PSI maximum working pressure, temperature range -65°F to +250°F (-53°C to +121°C)
- đ§ăYou Will Getă- 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.
- đ§ăTipsă- 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.
- Three piece construction - nut, sleeve and body with attached insert Use with copper, brass, aluminum, or plastic tubing
- High Pressure Resistance,Temperature Resistance
- Sealability and good repeatability,Easy to disassemble no flaring tool required
- Installation and maintenance convenient
- Safe and reliable,Lead free brass construction,Lead free approved product in all states
- 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:3/8" OD
- Materies: BRASS
- Net Weight: 34.7g/PC
- Choosing products dimensions and quantities at column of size and colour seperately,price would be more favorable if choosing wholesale.
- 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.
- Available in many different styles, including elbows, union, and tees
- A large variety of tube diameters and pipe sizes available
- Conveniently packaged in diverse piece counts to assist with both small and large projects
- Also suitable for a broad range of industrial and commercial uses
- Backed by team of engineers and quality control specialists in the United States
- Size: 3/8 inch OD copper tube connector is suitable for rigid pipes such as copper and aluminum pipes and is suitable for rigid pipes with a 3/8 inch OD; not suitable for hoses
- Package Contents: there are 4 pieces copper tube connectors, the quantity is sufficient to meet your home usage and replacement needs, you can also share them with your neighbors or relatives
- Tear and Wear Resistant: made of quality brass material, these line pressure fittings are reliable and sturdy, will not easy to break, tear and wear resistant, which can serve you for a long time
- Wide Range of Applications: these brass compression tube fittings are suitable for many occasions, they are practical and helpful home tools, bring much more convenience to your daily life
- Compact and Lightweight: the copper union fitting measures approx. 4 x 1.82 x 1.6 cm/ 1.57 x 0.72 x 0.63 inches, compact and lightweight, easy to store without taking up too much space
- ăPackage Includesă: 10 PCS 3/8" Compression x 3/8" Compression Union with A Sealing Tape.
- ăLead Free Brassă: Heath and environment friendly material. Made of Lead Free Brass. Lead free brass is for both potable and non-potable water.
- ăSuperior Materială: The 100% heavy duty brass tube fitting is firmer than iron and iron galvanized products, more robust and durable than castings.
- ăFunctionă: Compression union for connecting two 3/8 inch compression fitting tubes together.
- ăBetter Sealingă: A sealing tape included for further improving sealing performance by using on the male thread end.
- â Pack of two 3/8â OD x 3/8â OD tube fittings
- â Safe to use on copper or plastic water line tubing
- â Hex head on both sides of adapter provide excellent grip during installation
- â High quality and deep threads allow the fittings to bite better providing perfect compression for a leak-free connection
- â 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.
- Compression Union used for connecting two 1/4â tubing on both the ends. Thread size is 7/16-24. Package Includes 10 pcs. Temperature range: -65° F to 250°F. Maximum working pressure: 300 psi
- Three-piece construction â nut, sleeve and body. Easy to disassemble, no flaring tool required
- Manufactured from High Quality Brass for corrosion resistance, ductility at high temperatures, low magnetic permeability and leak-proof reliability
- Use with Copper, Brass, Aluminium, Steel, Copper Nickel or Plastic tubing. Plastic tubing requires insert
- Contains lead and are not allowed by federal law to be installed for potable water use in the U.S.A. and its territories.
- Union for connecting and disconnecting two tubes more easily than with a coupling
- Compression tube connections on both ends
- Brass for corrosion resistance, ductility at high temperatures, and low magnetic permeability
- Operating temperature range of -65 to +250 degrees F
- Three piece construction - nut, sleeve and body
- 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.
- 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.
- Three piece construction - nut, sleeve and body with attached insert
- Use with copper, brass, aluminum, or plastic tubing
- Standard fittings use short nuts
- Easy to disassemble no flaring tool required
- Primary uses water, gasoline, oil and vacuum lines
- 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.
- Union for connecting and disconnecting two pipes more easily than couplings
- Suitabal medium: Water, oil, air and some corrosive liquid.
- Made of stainless steel 304, heavy duty, durable and corrosion resistance.
- Compatible with stainless steel, copper, rigid and semi-rigid plastic tubing
- Nominal pressure: 16Mpa/2900psi; Max Applicable temperature: 450â/842â
- Made of stainless steel 304, heavy duty, durable and corrosion resistant.
- 1/4" outer diameter tube
- Fittings for connecting and extending stainless steel, copper, rigid and semi-rigid plastic tubing
- Maximum working pressure of 600 psi
- Temperature range from -100 to +660 degrees â
- đăPREMIUM MATERIALăïŒOur 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: 1/4"
- đăTYPICAL APPLICATIONăïŒThe 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.
- đăEASY TO BE INSTALLEDă: 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.
- đăMAX PRESSUREă: Working pressure from vacuum to 250 psi. Temperature Range: -40° F to +200° FïŒ-40°C to +93°CïŒ(Note: see tubing manufacturerâs recommendations for pressure and temperature mutations)
- đăQUALITY GUARANTEEă: If you have any problems with it ,please feel free to contact us and i will try my best to solve your problems as soon as possible until you are satisfied. We are highly confident with our products.you won't regret it if you got it!
- Ideal for high pressure applications up to 5,000 PSI
- Suitable for a wide range of industrial and HD applications
- Black oxide coated for superior protection against rust and corrosion
- Uniquely designed compression sleeve provides a seal tight connection
- 1 fitting per bag
- ăSizeă5PCS 3/16" OD compression union tube fittings.
- ăMaterialăBrass construction, which is corrosion resistance, no leaking, ductility at high, for long-lasting use.
- ăThree Piece ConstructionăNut, sleeve and body with attached insert.
- ăEasily UseăUse with copper, brass, aluminum, or plastic tubing. Easy to disassemble no flaring tool required. Installation and maintenance convenient.
- ăWidely UseăThis 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.
- Premium Brass for Leak-Proof Assurance: Our brake line unions feature top-tier craftsmanship, utilizing high-quality brass that sets the industry standard for leak-proof reliability. Each union is a testament to our unwavering commitment to quality and durability, ensuring that your brake system operates flawlessly and without the risk of leaks.
- Resistant Brass for Harsh Winter Conditions: Crafted from durable brass, our unions are built to endure even the harshest winter conditions. They have undergone rigorous testing to ensure resistance to corrosion caused by salt, a common issue faced by vehicle owners during winter months. With our unions, you can trust that your brake lines remain resilient and reliable, regardless of the challenging road conditions.
- Made of durable brass which is resistant to corrosion from salt that can be used on roads in the winter
- Versatile Compatibility: Our brake line unions are designed with versatility in mind. They seamlessly work with a variety of materials, including steel, copper-nickel, copper-coated steel, PVF-coated, and stainless steel lines. This adaptability ensures that you can confidently use our unions for a wide range of automotive applications, making them a practical choice for various projects and repairs.
- Lifetime Warranty for Peace of Mind: We back the quality and durability of our products with a lifetime warranty. When you purchase from 4LIFETIMELINES, you receive the assurance that, as long as the unions are correctly installed, they will outlast the life of your vehicle. This warranty reflects our commitment to providing you with products that deliver enduring performance, ensuring your peace of mind and satisfaction with your purchase. Choose 4LIFETIMELINES for unbeatable quality, reliability, and lasting value in your brake system components.
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: Â 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, Â 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.
