The Best Compression Union Straights

Looking for the best Compression Union Straights?

Discover now our comparison of the best Compression Union Straights. It is never easy to choose from the wide range of offers. On the market, you will find an incalculable number of models, all at different prices. And as you will discover, the best Compression Union Straights are not always the ones at the highest prices! Many criteria are used, and they make the richness and relevance of this comparison.
To help you make the best choice among the hundreds of products available, we have decided to offer you a comparison of the Compression Union Straights in order to find the best quality/price ratio. In this ranking, you will find products listed according to their price, but also their characteristics and the opinions of other customers. Also discover our comparisons by categories. You won’t have to choose your products at random anymore.

No. 1

MuHize Premium Brass Compression Union - 5/8" OD Straight Pipe Fitting for Industrial & Truck Trailers (Pack of 2)

【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】: 5/8" Tube OD x 5/8" 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 2).
【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.

No. 2

HaSaoMoi D.O.T Brass Compression Straight Union Fittings, 3/8" Air Compression Union for Nylon Tubings (Pack 4)

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

No. 3

HASAOMOI 90PCS Brass Tube Pipe Fittings Kit, Nylon Tubing Fittings Assortment 1/8" 3/16" 1/4" 3/8" 1/2" OD Compression Union Straight Connector & Sleeves Ferrules for Truck Airlines and Industrials

PREMIUM MATERIAL: 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
WORKING PRESSURE & TEMPERATURE: The maximum working pressure of compression tube fitting repair is up to 200PSI , temperature range -65°F to +250°F (-53°C to +121°C)
EASY TO INSTALL: Manufactured for low and medium-pressure tubing connection work where excessive vibration or tube movement is not involved. Compression Fittings do not require any flaring, soldering, or other type of tubing preparation. Use with copper, brass, aluminum, or plastic tubing. Standard fittings use short nuts
WIDELY USE: Brass compression tube fittings meet specifications and standards of ASA, ASME and 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
PACKAGE INCLUDES: Brass air line compression fittings contain: 4 pcs 1/8" compression tube union, 10 pcs 3/16" compression tube union, 8 pcs 1/4" compression tube union, 6 pcs 3/8" compression tube union, and 2 pcs compression tube union. 8 pcs 1/2"compression sleeves ferrules, 8 pcs 1/8" compression sleeves ferrules, 20 pcs 3/16" compression sleeves ferrules, 16 pcs 1/4" sleeves ferrules, 12 pcs 3/8" sleeves ferrules, and 4 pcs 1/2" compression sleeves ferrules. Total 90 pcs Brass Compression Fittings and 1pc 4m teflon tape

No. 4

QCDENG 3PCS 3/4" Tube OD x 3/4" Tube OD Connector, Brass Compression Pipe Straight Union Connector, Compression Tube Fitting

🛒Material: Made of high-quality brass, high temperature resistance, corrosion resistance and oil resistance, long service life
🛒Size: 3PCS 3/4" Tube OD x 3/4" Tube OD Connector
🛒Maximum working pressure: 150Psi (1Mpa), Temperature range: -65℉ to +250℉(-53°C to +121°C)
🛒Easy installation: Easy installation only need to unscrew the nut and clamp ring, insert the pipe fitting and tighten it successively
🛒Teflon tape: Teflon tape used to wrap pipe threads has a sealing feature that prevents water or air leakage

No. 5

SUNGATOR 6-Pack 3/8 Inch Brass Compression Tube Fittings, 3/8" x 3/8" OD Compression Union, Straight Coupling Adapter with a Sealing Tape

【Package Includes】: 6 PCS 3/8" OD x 3/8" OD Brass Compression Union; 1 PCS Sealing Tape.
【Easy Installation】: Easy disassembly without flaring tools, only need to unscrew the nut and sleeve, insert the compression coupling and tighten it successively.
【Better Sealing】: Precision thread, smooth surface, the threads are tighter, deeper, and smoother than regular products, and a sealing tape is included for further enhancing sealing performance.
【Superior Material】: Solid brass construction offers wear/corrosion resistance, high ductility, strength, and low permeability for a long service life. Lead-free brass guarantees the safety and health of your family.
【Wide Application】: Compatible with copper, brass, aluminum, or plastic pipe tubing line, the compression connector is ideally suited for pipeline systems carrying Water/Fuel/Oil(Lquid),Air/Vacuum(Gas).

No. 6

(4-Piece) Besosay 1/4" OD x 1/4" OD Brass Compression Union Tube Fittings Connectors for Air Compressor, 1/4 Inch OD x 1/4 Inch Compression Union Straights

✅ PRODUCT SIZE - 1/4" Tube OD x 1/4" Tube OD. Constructed by 2 compressor nuts, 2 compressor rings and body. Easy to disassemble and no flaring tool required.
✅ HIGH QUALITY BRASS - This compression tube fittings is made of high quality brass, which offering perfect corrosion resistance, compressive strength, high temperature ductility and low magnetic permeability. The thickened body with strong physical properties makes it durable. This 1/4" Tube OD x 1/4" Tube OD compression tube fittings have reliable quality and long service life.
✅ MULTIPLE APPLICATIONS - This 1/4" Tube OD x 1/4" Tube OD compression union connectors are applicable to pipeline systems of oil, natural gas, water and other non-corrosive substances. Compression union connectors can be used repeatedly.
✅ MAXIMUM WORKING PRESSURE & WORKING TEMPERATURE RANGE - Maximum working pressure up to 1200 PSI , temperature range from -65°F to 250°F (-53°C ~ 121°C).
✅ OPERATING PRINCIPLES - These compression tube fitting are to compress the ferrule by thread interlocking, and both 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.

No. 7

uxcell 2Pcs Brass Pipe Fitting, 3/16" OD x 1/8" NPT Male Compression Tube Fitting, Union Connector, Straight Coupling Adapter Fit 3/16" Pipe

[Size & Package] - The brass pipe fittings feature a thread size of 1/8" NPT, fit 3/16 inch Pipe, have an outer diameter of 0.39 inch, inner diameters of 0.19 and 0.23 inch, and measure a total size of 0.47 x 1.03 inches (W x L). Package includes 2pcs brass pipe fitting
[Material] - Brass pipe fittings are made of brass with smooth surface, corrosion resistance, high temperature ductility and high hardness, suitable for long-term use
[Feature] - The compression fitting uses a threaded interlock mechanism to securely tighten the sleeve. The inner diameter of the sleeve contracts radially at both ends, tightly enclosing the pipe, ensuring a reliable seal and achieving a firm and sealed connection between the fitting and the pipe
[Installation] - First, make sure the end of the pipe is clean and remove the burrs on the end. Put the nut and washer on the pipe first, then insert the pipe into the external threaded joint, and finally tighten the external threaded joint with the nut and washer
[Application] - The pipe fitting is widely used for sealing pipes and joints. It can be used in connection lines for fuel, oil, air, liquid petroleum or gas. No welding and flaring tools are required, and it is easy to disassemble, install and maintain, etc

No. 8

CheeMuii 74 PCS Brass DOT Air Line Fittings Kit DOT Push Lock and Compression Air Fittings Pure Brass Quick Connect Straight Union 1/8" 5/32" 1/4" 3/8" 1/2" 5/8" 3/4" Air Hose Fittings Assortment

74 PCS PACKAGE: The 74 pcs DOT air brake fittings kit includes 18 pcs quick connect DOT straight unions, 12 pcs compression DOT straight unions, 4 pcs 1/4" schrader valve, 40 pcs sleeves ferrules. Pure brass DOT air fitting assortment types: 1/8" 5/32" 1/4" 3/8" 1/2" 5/8" 3/4"
PREMIUM QUALITY: The CheeMuii DOT air line fittings are made of high-quality CA360 brass, meet D.O.T. FMVSS 571.106 approved, SAE J1131 air brake system requirements, with corrosion resistance, high-temperature ductility, low permeability and long service life
QUICK CONNECT FITTINGS: Our DOT push-to-connect air fittings and compression air fittings are extremely easy to install, can be sealed by pushing the tube firmly into the fitting and are also simple to remove from the tube
MAX WORKING INTENSITY: The brass DOT air fittings can be operated in pressures from vacuum to 800 PSI and in temperatures from -40°F to +200°F (-40°C to +93°C). Note: see the tubing manufacturer's recommendations for pressure and temperature mutations
WIDE APPLICATION: The DOT air brake fittings can be used with air suspension systems, copper tubing in airline brake systems, perfect for truck /RV repair air line leak, also ideal for industrial workshops, daily garden or lawn mower repair, towing machine hose connection, etc

No. 9

FITOK 316 Stainless Steel Compression Tube Fitting Straight Union 1/2" Tube OD 6700 psi, SS-U-FL8

Fully certified to ASTM F1387 standards. Double ferrule compression tube fitting connecting to fractional tubing. Interchangeable with other major brands including Swagelok and Parker A-Lok.
Manufactured from high-grade 316 stainless steel for superior mechanical strength and resistance to corrosion.
Precision machining of components guarantees optimal deformation of ferrules and tubing, providing leak-tight and vibration-resistant connections even in harsh or stressful applications.
Hardened threads with a smooth surface finish prevent galling and extend the service life. Nut threads are silver-plated to minimize friction against the body threads. Easy to disconnect and retighten.
Every FITOK fitting is engraved with details including connection size and type, brand name, material, and heat number, ensuring proper identification, traceability, and quality control.

No. 10

Pysrych Stainless Steel 304 Compression Tube Fitting, Reducer Union, 1/4" OD x 1/8" OD Reducing Straight Connector Adapter, 2pcs

Reducing union fitting for connecting and disconnecting two tubes with different diameters
1/4" tube OD connection on one end and 1/8" tube OD on the other.
304 stainless steel for higher strength and greater corrosion resistance.
Operating temperatures: below 450℃/ Working pressure: 25Mpa-40Mpa.
Applicable medium: oil, water, gas and other non-corrosive or corrosive medium.

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Last update on 2025-05-20 / Affiliate links / Images from Amazon Product Advertising API

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