Best Ceker Straight Tube Fittings in 2026

★ 【Material】: Heavy Duty Brass,strong and durable. Size: 1/4" Tube OD x 1/4" inch NPT Male Adapter.

★ 【Firm And Durable】: Litorange Brass for corrosion resistance, high temperature ductility and low magnetic permeability.

★ 【Function】: Fitting connects to tubing on one end and has an NPT male connector on the other. Use with copper, brass, aluminum, or plastic tubing.

Made of high-quality plastics and brass for durable use

Type: Quick Connect Fitting Connector

Advantages: Easy installation and disassembly, good sealing performance

✅MEASUREMENT- The gas ball valve is equipped with a 1/2 inch flare x 1/2 inch female inlet pipe (FIP) threaded connection.

✅QUALITY- The straight-flare gas ball valve is constructed of high-impact, durable brass to provide a strong and long-lasting performance. The working pressure is up to 175 PSI. A working temperature range of 32 degrees Fahrenheit to 125 degrees Fahrenheit is recommended for product safety.

✅FUNCTIONALITY- Designed for use with liquefied petroleum gas, LP gas, and air mixtures.

Type:1/2" Od x 3/8" NPT Male Push to Connect Fittings; Body Style: Male Straight

1/2 inch Tube Air Fittings Fluid Admitted: Air, Water (No Freezing)

3/8 Quick Connect Fittings Working Pressure:0-1.0mpa | 0-150psi; Proof Pressure:3.0Mpa | 435psi; Negative Pressure:-100Kpa | -29.5 In Hg

Body Style: Male Straight / Size:3/8"OD x 1/4" NPT Straight Union Connector

Fluid Type:Air Vacuum,water,oil (no freezing)

Working Pressure:0-1.0MPa | 0-145psi/Applicable Tube:PU / PA / PE / PVC

Type:1/4" Od x 1/8" NPT Thread Push to Connect Fittings; Body Style: Female Straight

1/4 inch Air line Fittings Fluid Admitted: Air, Water (No Freezing)

1/4 Quick Connect fittings Working Pressure:0-1.0mpa | 0-150psi; Proof Pressure:3.0Mpa | 435psi; Negative Pressure:-100Kpa | -29.5 In Hg

1/4 Union Straight Push to connect fittings Fluid Admitted: Air, Water, Steam ;Pressure: 2MPa | 290psi/ Applicable: Pipe PU/NYLON/Soft PE; Working Temperature:-20°C—120°C | -4°F—248°F

1/4 Push connectors Nickel Plated Brass - corrosion resistance, ductility at high temperatures, and low magnetic permeability; Seal: O-ring FKM(Viton)

These 1/4 quick connect fittings work great ,available in various styles and models ,good to suit your pneumatic piping needs perfectly, easy to connect and disconnect, a quick fix to your leaking problems.

Made of high-quality plastics and nickel-plated copper for durable use

Type: Quick Connect Fitting Connector

Advantages: Easy installation and disassembly, good sealing performance

Material: Plastic/brass nickel-plated.

Size: 1/8 inch NPT Thread; 1/4 inch Tube OD

Adatta per PU / PA / PE / PVC 1/4" tubi OD

Designed To Withstand A Wide Range Of Temperatures, From -20°c To 120°c (-4°f To 248°f), Ensuring Durability And Reliability In Any Environment.Our Quick Connect Fittings Are Compatible With Various Types Of Tubing, Including Pu, Nylon,

Easy Installation: Featuring A 1/4 Quick Connect Fittings Size, These Fittings Ensure A Quick And Effortless Installation Process. No More Wasting Time On Complex Procedures; Simply Connect And Disconnect With Ease. Air Hose Quick Fittings:

Push Lock Fittings: For Added Security, Our Quick Connect Fittings Feature Push Lock Mechanisms, Ensuring A Tight And Reliable Seal. Quick Connect Tube Fittings: Designed Specifically For Tube Applications, Our Quick Connect Fittings Allow For Swift And Effortless Connections.

Bulkhead Fitting Push Connector Type : 3/8 inch, Tube OD 3/8 inch NPT

Bulkhead Fitting Type: Push In Straight Male Connector; Body:Nickel Plated Brass Seal, O-Ring NBR;

Bulkhead Fitting Features: high pressure resistant and non tripping, all taper pipe threads are paint Teflon leakage-proof rubber, offering good seal property

Male Straight - 1/4" Tube OD x 1/8" NPT Thread (Nominal Ourside Pipe Diameter OD: 0.405")

Nickel Plated Brass

Working Temp.: -4 ~ 160 Fahrenheit/ Max. Working Press: 261 PSI

Push fittings size: PC 5/16-NPT 1/8; material: nickel plated brass

Push to connect fitting working medium: compressed air, vacuum ( not other liquid); working pressure: 0-150 PSI/ 0-9.9kgf/cm2 (0-990kpa)

Push fitting negative pressure: -29.5 in Hg/ -750mm Hg; working temperature: 32-160℉ / 0-70℃; application of air tube: polyurethane and nylon tube

【Package Includes】: 3/8 Inch Compression x 1/2 Inch NPT Male Reducing Adapter (2 pcs); Sealing Tape (1 pc).

【Premium Performance】: Solid brass made. Deep and clean thread for better tightening with faucets, pipes, and hoses.

【Superior Material】: The 100% heavy duty brass tube fitting is firmer than iron and iron galvanized products, more robust and durable than castings.

【Durable】This fitting has nickel plated brass body with POM release button and zinc alloy ferrule. Operating Pressure: 0~145 Psi. High pressure resistance, corrosion resistance and a long service life.

【Push Lock】Quick connect fittings easy to install and remove, just one touch to connect the tube. The release ring adopts ellipse design, removed conveniently.

【Convenience】360°rotation, after installation, the tube direction can be changed easily. This fittings have hexagonal body allowing tightening with wrench, additionally can be screwed with Allen tool, which is especially convenient where there is limited access to installation place.

【PREMIUM MATERIAL】：Our push in fittings are made of high quality CA360 brass,Certified by DOT and Air Brake system Requirements,with corrosion resistance, high temperature ductility and low permeability. Great for long time use, dot air brake fitting pneumatic fittings type: 3/8" .

【TYPICAL APPLICATION】：The air brake fittings assortment kit can be used with air systems, copper tubing in air lines brake systems, which is perfect for automotive car or truck repair,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】: Union connect two tube with same OD. All quick connect fittings can be sealed by pushing the tube firmly into the fittings and they are also simple to be removed from the tube.

[Fuel hardline fitting] : Only compatible with hard tube.6AN to 3/8 inch,the thread size of the 6AN is 9/16UNF.It's fits to 3/8" OD hardline,please measure before perchase.

[Material]: Made of aluminium alloy fitting and brass ferrule.Good corrosion resistance. There is no pollution in disposal, which is beneficial to environmental protection.

[Wildly Application]: This 3/8 hardline to 6an fitting is widely used in Brake System / Air & Fuel Delivery/ Engine Modification / Oiling System / Cooling System.

5/16" Brass compression unions - Pack of 3

These compression unions are used on fuel, transmission, oil, return power steering line and coolant lines

Works with steel, copper, aluminum & nylon tubing material or combinations of these together

👉【Premium Material】: Our air line fittings are made of PBT Plastic, the air brake brass fittings DOT approved are made of high quality CA360 brass, with corrosion resistance, high temperature ductility and low permeability. Great for long time use.

👉【Quantity】: Unique dot air line quick connect fittings nylon tubing kit: The plastic tube fittings contain 28 pieces: 8 pcs Male straight push connectors, 6 pcs Straight tube unions. 6 pcs 90 degree Elbows. 4 pcs 90 degree Elbows NPT thread. 4 pcs Tube tees. The brass tube fittings contain 16 pieces: 5 pcs Male connectors. 5 pcs Male 90° elbows. 3 pcs Tube tees. 3 pcs Tube unions. Fit type: 1/2", 3/8", 1/4".

👉【Typical Application】: The push-to-connect fitting 1/4 inch are suitable for PU / PA / PE / PVC. The dot air fittings assortment can be used with air systems, and copper tubing in air brake systems. They are widely applied in automotive, manufacturing production lines, car or truck repair, industrial workshops, daily garden or lawn mower repair, towing machine hose connections and so on.

Type: Standard 3/8" Tube OD (Compression) male to 3/8" Tube OD (Compression) male.Compression nuts and ferrules included.5pcs

Reducing adapter for different size tube pipes or fittings,Both fitting connects to tubing end.

Tube OD Compression Straight Coupling Adapter for converting Aluminum, Plastic, and Copper straight compression thread pipe Tubing.

6 PCS BRASS TUBE TEE FITTING: 2 PCS 1/4 Inch & 2 PCS 3/8 Inch & 2 PCS 1/2 Inch;

6 PCS BRASS STRAIGHT UNION CONNECTORS: 2 PCS 1/4 Inch & 2 PCS 3/8 Inch & 2 PCS 1/2 Inch;

10 PCS BRASS 90°ELBOWS NPT THREAD: 2 PCS 3/8 Inch O/D × 3/8 Inch NPT & 2 PCS 3/8 Inch O/D × 1/2 Inch NPT & 2 PCS 1/2 Inch O/D × 1/4 Inch NPT & 2 PCS 1/2 Inch O/D × 3/8 Inch NPT & 2 PCS 1/2 Inch O/D × 1/2 Inch NPT;

【PREMIUM MATERIAL】：Our DOT air brake fittings are made of high quality CA360 brass,Meets D.O.T FMVSS 571.106 , Air Brake system Requirements,with corrosion resistance, high temperature ductility and low permeability. Great for long time use, dot air brake fitting type: 1/4", 3/8", 1/2"，1/8", 5/8" .

【 AIR LINE NYLON TUBING KIT】:The air brake fittings contain 44 PCS. 12PCS DOT Union , 6PCS DOT Tee , 4PCS Bushing, 8PCS 90⁰ DOT Male Elbow Connector, 8PCS DOT Straight Male Connector , 4PCS 45⁰ DOT Male Elbow Connector , 2pcs Compression Fittings 1/4" tube x 1/4" NPT Male. Fitting types: 1/4", 3/8", 1/2",1/8",5/8". All in a durable yet lightweight plastic storage container with flip lock tabs, rust and secure.

【EASY TO INSTALL】: Our dot air fitting kit quicks disconnect simply push tubing in, need to use tools to fix loose parts to handle in tight places, so that use will be more firm and not easy to fall off.And pieces that contain a threaded end already have sealant pre applied to provide a secure connection.

DOT Air Brake Line Fittings 32pcs KIT: Brass Material 3/8”1/2” 1/4” Tube OD; Straight 1/2" Tube x 3/8" NPT 2PCS,3/8" Tube x 3/8" NPT 2PCS,3/8" Tube x 1/2" NPT 2PCS,1/2"Tube x 1/2" NPT 2PCS,1/2" Tube x 1/4" NPT 2PCS;90°Elbow 3/8"Tube x 1/2" NPT 2PCS,3/8" Tube x 3/8" NPT 2PCS,1/2" Tube x 1/2" NPT 2PCS,1/2" Tube x 3/8" NPT 2PCS",1/2" Tube x 1/4" NPT 2PCS";Tube Union 1/2" 2PCS,1/4"" 2PCS,3/8"?2PCS;Tube Tee 1/2" 2PCS,3/8" 2PCS, 1/4"" 2PCS;

Air Brake Line Fittings Typical Application: Air System;Working PRESSURE: Working pressure from vacuum up to 250 psi; Temperature Range: -40° F to +200° F（-40°C to +93°C) ;

How to installation Brass Push to Connect Fitting Kits:Insert the same OD Pneumatic Tube from union two side ;How to Put Out the Tube:Step 1: Depress the end cap;Step 2: Pull out the Pneumatic Tube;

【PREMIUM MATERIAL】：The dot air fittings are made of high quality CA360 brass,Meets D.O.T FMVSS 571.106 ,SAE J1131 Air Brake system Requirements and Air Brake system Requirements,with corrosion resistance, high temperature ductility and low permeability. Great for long time use,dot push to connect air fittings kit pneumatic fittings type: 1/4", 3/8", 1/2" .

【TYPICAL APPLICATION】The dot air line quick connect fittings can be used with air suspension systems, copper tubing in air lines brake systems, which is perfect for automotive car or truck repair,air operated seats, operating gauges, air horns, industrial workshops, air brake connections,towing machine hose connection and air brake connections.

【EASY TO INSTALL】: Our dot push to connect air fittings simply push tubing in, no tools or loose parts to handle in tight places. Save your effort and time. And pieces that contain a threaded end already have sealant pre applied to provide a secure connection.

MATERIAL: Daptemn quick connect kit, air hose repair kit includes plastic push fittings and brass air brake push fittings, can be used to connect 1/2 inch 3/8 inch 1/4 inch nylon and plastic hose, 46 pieces total.

YOU GET：8pcs plastic straight push to fittings, 4pcs T-connectors, 6pcs L-connectors, 4pcs 90° elbow NPT thread, 8pcs straight push to fittings NPT thread. DOT air fittings: 3pcs straight push to fittings, 3pcs T connectors, 5pcs 90° elbow NPT thread, 5pcs straight push to fittings NPT thread.

PLASTIC CONNECTOR ADAPTOR SIZE: 1/2" 3/8" 1/4" tube union, reducing union 3/8" x 1/4" OD; T-Connectors 3/8" 1/4" tube tee; 90° L-Type Elbow 1/2" 3/8" 1/4"; Wall outlets 3/8" tube x 3/8" NPT, 3/8" tube x 1/4" NPT; Straight 1/2" OD x 1/2" NPT, 3/8" OD x 3/8" NPT, 1/4" OD x 1/4" NPT, 3/8" OD x 1/4" NPT.