Connection Style Connection Style |
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| Barbed |
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| Quick Disconnect |
Flow Control Flow Control |
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For Use With For Use With |
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Length Length |
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For Hole Diameter For Hole Diameter |
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Maximum Vacuum Maximum Vacuum |
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Maximum Pressure Maximum Pressure |
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DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense AcquisitionRegulations Supplement) |
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For Tube Hardness For Tube Hardness |
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How to Identify and Measure Fittings
Pipe size is an industry designation, not the actual size. View information about how to measure threaded and unthreaded pipe and pipe fittings.
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Plastic Quick-Disconnect Tube Couplings for Air and Water
Lighter in weight than their metal counterparts, these quick-disconnect couplings are plastic. They consist of a plug and a socket that allow you to frequently connect and disconnect your line.
Latch-lock sockets disconnect by pressing the latch.
Acetal plugs and sockets are moisture resistant, so they won’t absorb water and lose strength, even in high-humidity environments. Plug and Sockets with shut-off have a valve to stop the flow when the coupling is separated, so air or water won’t spill from your line.
Note: For a complete coupling, order a plug and a socket with the same coupling size.
For technical drawings and 3-D models, click on a part number.
- Temperature Range: -40° to 180° F
- Tubing: Use with soft or firm (Durometer 70A-85A) polyurethane rubber
Barbed plugs and sockets insert into tubing. Those with collar do not require a clamp and limit the size of the tubing to a maximum of 1/8” OD.
Through-wall plugs and sockets are also known as bulkhead and panel-mount plugs and sockets; they mount through your wall or panel to create an inlet or outlet.
| Coupling Size | Plug OD | For Tube ID | Barbed Connection Type | Material | Color | Max. Pressure | For Hole Dia. | For Max. Wall Thick. | Each | |
Open Flow | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| 3/32 | 1/4" | 1/16" | Collar | Acetal Plastic | White | 100 psi @ 72° F | 7/16" | 13/64" | 00000000 | 00000 |
| 3/32 | 1/4" | 1/8" | Clamp On | Acetal Plastic | White | 100 psi @ 72° F | 7/16" | 13/64" | 00000000 | 0000 |
| 1/8 | 5/16" | 1/16" | Collar | Acetal Plastic | White | 100 psi @ 72° F | 1/2" | 19/64" | 0000000 | 00000 |
| 1/8 | 5/16" | 1/8" | Clamp On | Acetal Plastic | White | 100 psi @ 72° F | 1/2" | 19/64" | 0000000 | 0000 |
| 1/8 | 5/16" | 3/16" | Clamp On | Acetal Plastic | White | 100 psi @ 72° F | 1/2" | 19/64" | 0000000 | 0000 |
| 1/8 | 5/16" | 1/4" | Clamp On | Acetal Plastic | White | 100 psi @ 72° F | 1/2" | 19/64" | 0000000 | 0000 |
| 1/4 | 7/16" | 1/4" | Clamp On | Acetal Plastic | White | 100 psi @ 72° F | 11/16" | 19/64" | 0000000 | 0000 |
| 1/4 | 7/16" | 5/16" | Clamp On | Acetal Plastic | White | 100 psi @ 72° F | 11/16" | 19/64" | 0000000 | 0000 |
| 1/4 | 7/16" | 3/8" | Clamp On | Acetal Plastic | White | 100 psi @ 72° F | 11/16" | 19/64" | 0000000 | 0000 |
With Shut-Off | ||||||||||
| 1/8 | 5/16" | 1/16" | Collar | Acetal Plastic | White | 100 psi @ 72° F | 1/2" | 19/64" | 0000000 | 00000 |
| 1/8 | 5/16" | 1/8" | Clamp On | Acetal Plastic | White | 100 psi @ 72° F | 1/2" | 19/64" | 0000000 | 00000 |
| 1/8 | 5/16" | 3/16" | Clamp On | Acetal Plastic | White | 100 psi @ 72° F | 1/2" | 19/64" | 0000000 | 00000 |
| 1/8 | 5/16" | 1/4" | Clamp On | Acetal Plastic | White | 100 psi @ 72° F | 1/2" | 19/64" | 0000000 | 00000 |
| 1/4 | 7/16" | 1/4" | Clamp On | Acetal Plastic | White | 100 psi @ 72° F | 11/16" | 19/64" | 0000000 | 00000 |
| 1/4 | 7/16" | 5/16" | Clamp On | Acetal Plastic | White | 100 psi @ 72° F | 11/16" | 19/64" | 0000000 | 00000 |
| 1/4 | 7/16" | 3/8" | Clamp On | Acetal Plastic | White | 100 psi @ 72° F | 11/16" | 19/64" | 0000000 | 00000 |
- Temperature Range: -40° to 180° F
- Tubing: Use with soft or firm (Durometer 70A-85A) polyurethane rubber
Barbed plugs and sockets insert into tubing. Those with collar do not require a clamp and limit the size of the tubing to a maximum of 1/8” OD.
Through-wall plugs and sockets are also known as bulkhead and panel-mount plugs and sockets; they mount through your wall or panel to create an inlet or outlet.
| Coupling Size | For Plug OD | For Tube ID | Barbed Connection Type | Material | Color | Max. Pressure | For Hole Dia. | For Max. Wall Thick. | Socket Locking Type | Each | |
Open Flow | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1/8 | 5/16" | 1/16" | Collar | Acetal Plastic | White | 100 psi @ 72° F | 1/2" | 1/2" | Latch | 0000000 | 000000 |
| 1/8 | 5/16" | 1/8" | Clamp On | Acetal Plastic | White | 100 psi @ 72° F | 1/2" | 1/2" | Latch | 0000000 | 00000 |
| 1/8 | 5/16" | 3/16" | Clamp On | Acetal Plastic | White | 100 psi @ 72° F | 1/2" | 1/2" | Latch | 00000000 | 00000 |
| 1/8 | 5/16" | 1/4" | Clamp On | Acetal Plastic | White | 100 psi @ 72° F | 1/2" | 1/2" | Latch | 0000000 | 00000 |
| 1/4 | 7/16" | 1/4" | Clamp On | Acetal Plastic | White | 100 psi @ 72° F | 11/16" | 1/2" | Latch | 0000000 | 00000 |
| 1/4 | 7/16" | 5/16" | Clamp On | Acetal Plastic | White | 100 psi @ 72° F | 11/16" | 1/2" | Latch | 00000000 | 00000 |
| 1/4 | 7/16" | 3/8" | Clamp On | Acetal Plastic | White | 100 psi @ 72° F | 11/16" | 1/2" | Latch | 0000000 | 00000 |
With Shut-Off | |||||||||||
| 1/8 | 5/16" | 1/16" | Collar | Acetal Plastic | White | 100 psi @ 72° F | 1/2" | 1/2" | Latch | 0000000 | 00000 |
| 1/8 | 5/16" | 1/8" | Clamp On | Acetal Plastic | White | 100 psi @ 72° F | 1/2" | 1/2" | Latch | 0000000 | 00000 |
| 1/8 | 5/16" | 3/16" | Clamp On | Acetal Plastic | White | 100 psi @ 72° F | 1/2" | 1/2" | Latch | 00000000 | 00000 |
| 1/8 | 5/16" | 1/4" | Clamp On | Acetal Plastic | White | 100 psi @ 72° F | 1/2" | 1/2" | Latch | 0000000 | 00000 |
| 1/4 | 7/16" | 1/4" | Clamp On | Acetal Plastic | White | 100 psi @ 72° F | 11/16" | 1/2" | Latch | 0000000 | 00000 |
| 1/4 | 7/16" | 5/16" | Clamp On | Acetal Plastic | White | 100 psi @ 72° F | 11/16" | 1/2" | Latch | 00000000 | 00000 |
| 1/4 | 7/16" | 3/8" | Clamp On | Acetal Plastic | White | 100 psi @ 72° F | 11/16" | 1/2" | Latch | 0000000 | 00000 |
High-Pressure Quick-Disconnect Tube Couplings for Air
Not only do these chrome-plated brass couplings have excellent corrosion resistance, they also withstand pressures up to 250 psi. Couplings consist of a plug and a socket (sold separately) that join with a latch, so you can frequently connect and disconnect your line. To connect, insert the plug into the socket; to disconnect, press the latch on the socket and remove the plug.
Plugs and Sockets with shut-off have a valve to stop the flow when the coupling is separated, so air won’t leak from your line.
Note: For a complete coupling, order a plug and a socket with the same coupling size.
For technical drawings and 3-D models, click on a part number.
- Temperature Range: -40° to 180° F
- Tubing: Use with soft or firm (Durometer 70A-80A) polyurethane rubber
Barbed plugs and sockets insert into tubing and secure with a clamp.
Through-wall plugs and sockets are also known as bulkhead and panel-mount plugs and sockets; they mount through your wall or panel to create an inlet or outlet.
Open Flow | With Shut-Off | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Coupling Size | Plug OD | For Tube ID | Material | Max. Pressure | For Hole Dia. | For Max. Wall Thick. | Each | Each | ||
| 1/8 | 5/16" | 1/8" | Chrome-Plated Brass | 250 psi @ 72° F | 1/2" | 19/64" | 00000000 | 000000 | 00000000 | 000000 |
| 1/8 | 5/16" | 3/16" | Chrome-Plated Brass | 250 psi @ 72° F | 1/2" | 19/64" | 00000000 | 00000 | 00000000 | 00000 |
| 1/8 | 5/16" | 1/4" | Chrome-Plated Brass | 250 psi @ 72° F | 1/2" | 19/64" | 00000000 | 00000 | 00000000 | 00000 |
| 1/4 | 7/16" | 1/4" | Chrome-Plated Brass | 250 psi @ 72° F | 11/16" | 19/64" | 00000000 | 00000 | 00000000 | 00000 |
| 1/4 | 7/16" | 3/8" | Chrome-Plated Brass | 250 psi @ 72° F | 11/16" | 19/64" | 00000000 | 00000 | 00000000 | 00000 |
- Temperature Range: -40° to 180° F
- Tubing: Use with soft or firm (Durometer 70A-80A) polyurethane rubber
Barbed plugs and sockets insert into tubing and secure with a clamp.
Through-wall plugs and sockets are also known as bulkhead and panel-mount plugs and sockets; they mount through your wall or panel to create an inlet or outlet.
Open Flow | With Shut-Off | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Coupling Size | For Plug OD | For Tube ID | Material | Max. Pressure | For Hole Dia. | For Max. Wall Thick. | Each | Each | ||
| 1/8 | 5/16" | 1/8" | Chrome-Plated Brass | 250 psi @ 72° F | 1/2" | 1/2" | 00000000 | 000000 | 00000000 | 000000 |
| 1/8 | 5/16" | 3/16" | Chrome-Plated Brass | 250 psi @ 72° F | 1/2" | 1/2" | 00000000 | 00000 | 00000000 | 00000 |
| 1/8 | 5/16" | 1/4" | Chrome-Plated Brass | 250 psi @ 72° F | 1/2" | 1/2" | 00000000 | 00000 | 00000000 | 00000 |
| 1/4 | 7/16" | 1/4" | Chrome-Plated Brass | 250 psi @ 72° F | 11/16" | 1/2" | 00000000 | 00000 | 00000000 | 00000 |
| 1/4 | 7/16" | 3/8" | Chrome-Plated Brass | 250 psi @ 72° F | 11/16" | 1/2" | 00000000 | 00000 | 00000000 | 00000 |
Low-Profile High-Pressure Quick-Disconnect Tube Couplings for Air
- Temperature Range: -30° to 250° F
- Tubing: Use with firm or soft (Durometer 35A-90A) Buna-N rubber, EVA plastic, gum rubber, latex rubber, neoprene rubber, polyurethane rubber, PVC plastic or silicone rubber, except for fittings with pipe end
With no latch, these couplings have a compact design to fit in small spaces. They connect with a push and disconnect with a pull, so you can easily access your line. Couplings consist of a plug and a socket (sold separately). They have a universal connection, so the plugs will connect to any of the sockets regardless of the pipe or tube size. They are nickel-plated brass for very good corrosion resistance.
Note: For a complete coupling, order a plug and a socket.
For technical drawings and 3-D models, click on a part number.
Through-wall plugs and sockets are also known as bulkhead and panel-mount plugs and sockets; they mount through your wall or panel to create an inlet or outlet.
Open Flow | ||||||
|---|---|---|---|---|---|---|
| For Tube ID | Material | Max. Pressure | For Hole Dia. Range | For Max. Wall Thick. | Each | |
| 3/32" | Nickel-Plated Brass | 700 psi @ 72° F | 1/4"-5/16" | 5/32" | 0000000 | 00000 |
| 1/8" | Nickel-Plated Brass | 700 psi @ 72° F | 5/16"-3/8" | 7/32" | 0000000 | 0000 |
| 5/32" | Nickel-Plated Brass | 700 psi @ 72° F | 5/16"-3/8" | 7/32" | 0000000 | 0000 |
| 3/16" | Nickel-Plated Brass | 700 psi @ 72° F | 1/4"-5/16" | 5/32" | 0000000 | 0000 |
Sockets with shut-off have a valve to stop the flow when the coupling is separated, so air won’t leak from your line.
Through-wall plugs and sockets are also known as bulkhead and panel-mount plugs and sockets; they mount through your wall or panel to create an inlet or outlet.
Open Flow | With Shut-Off | |||||||
|---|---|---|---|---|---|---|---|---|
| For Tube ID | Material | Max. Pressure | For Hole Dia. Range | For Max. Wall Thick. | Each | Each | ||
| 3/32" | Nickel-Plated Brass | 700 psi @ 72° F | 1/4"-5/16" | 5/32" | 0000000 | 000000 | 0000000 | 000000 |
| 1/8" | Nickel-Plated Brass | 700 psi @ 72° F | 5/16"-3/8" | 7/32" | 0000000 | 00000 | 0000000 | 00000 |
| 5/32" | Nickel-Plated Brass | 700 psi @ 72° F | 5/16"-3/8" | 7/32" | 0000000 | 00000 | 0000000 | 00000 |
| 3/16" | Nickel-Plated Brass | 700 psi @ 72° F | 1/4"-5/16" | 5/32" | 0000000 | 00000 | 0000000 | 00000 |
Quick-Disconnect Couplings for Plastic and Rubber Tubing—Chemicals
- For Use With: Ammonia, Ethanol, Phosphoric Acid (70%), Sodium Carbonate
- Temperature Range: 32° to 160° F
Couplings consist of a plug and a socket (sold separately) that join with a latch, so you can frequently connect and disconnect your line. To connect, insert the plug into the socket; to disconnect, press the latch on the socket and remove the plug. Plugs and sockets are polypropylene, which has excellent chemical, impact, and abrasion resistance.
Plugs and sockets with shut-off have a valve to stop the flow when the coupling is separated so fluid won’t spill from your line.
Note: For a complete coupling, order a plug and a socket with the same coupling size.
For technical drawings and 3-D models, click on a part number.
Barbed sockets insert into tubing and secure with a clamp.
Through-wall sockets are also known as bulkhead sockets and panel-mount sockets; they mount through your wall or panel to create an inlet or outlet.
| Coupling Size | For Plug OD | For Tube ID | Material | Color | Max. Pressure | For Hole Dia. | For Max. Wall Thick. | Each | |
Open Flow | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| 1/8 | 5/16" | 1/8" | Polypropylene Plastic | Beige | 120 psi @ 72° F | 1/2" | 1/2" | 00000000 | 000000 |
| 1/8 | 5/16" | 1/4" | Polypropylene Plastic | Beige | 120 psi @ 72° F | 1/2" | 1/2" | 00000000 | 00000 |
| 1/4 | 7/16" | 1/4" | Polypropylene Plastic | Beige | 120 psi @ 72° F | 11/16" | 1/2" | 00000000 | 00000 |
| 1/4 | 7/16" | 3/8" | Polypropylene Plastic | Beige | 120 psi @ 72° F | 11/16" | 1/2" | 00000000 | 00000 |
| 3/8 | 3/4" | 3/8" | Polypropylene Plastic | Gray | 60 psi @ 72° F | 1 13/16" | 1/4" | 00000000 | 00000 |
| 3/8 | 3/4" | 1/2" | Polypropylene Plastic | Gray | 60 psi @ 72° F | 1 13/16" | 1/4" | 00000000 | 00000 |
With Shut-Off | |||||||||
| 1/8 | 5/16" | 1/8" | Polypropylene Plastic | Beige | 120 psi @ 72° F | 1/2" | 1/2" | 00000000 | 00000 |
| 1/8 | 5/16" | 1/4" | Polypropylene Plastic | Beige | 120 psi @ 72° F | 1/2" | 1/2" | 00000000 | 00000 |
| 1/4 | 7/16" | 1/4" | Polypropylene Plastic | Beige | 120 psi @ 72° F | 11/16" | 1/2" | 00000000 | 00000 |
| 1/4 | 7/16" | 3/8" | Polypropylene Plastic | Beige | 120 psi @ 72° F | 11/16" | 1/2" | 00000000 | 00000 |
| 3/8 | 3/4" | 3/8" | Polypropylene Plastic | Gray | 60 psi @ 72° F | 1 13/16" | 1/4" | 00000000 | 00000 |
| 3/8 | 3/4" | 1/2" | Polypropylene Plastic | Gray | 60 psi @ 72° F | 1 13/16" | 1/4" | 00000000 | 00000 |
Quick-Disconnect Tube Couplings for Food and Beverage
- Temperature Range:
Acetal Plastic: -40° to 180° F
Polypropylene Plastic: 32° to 160° F - Tubing:
Barbed Fittings: Use with soft or firm (Durometer 65A-80A) polyurethane rubber
Compression Fittings: Use with hard or firm (Durometer 80A-60D) nylon or polyethylene plastic - Specifications Met: NSF/ANSI 169
Couplings consist of a plug and a socket (sold separately) that join with a latch, so you can frequently connect and disconnect your line. To connect, insert the plug into the socket; to disconnect, press the latch on the socket and remove the plug. They’re made of FDA-approved materials, including moisture-resistant plastic that won’t absorb liquid and lose strength, even in high-humidity food and beverage applications.
Plugs and sockets with shut-off have a valve to stop the flow when the coupling is separated, so fluid won’t spill from your line.
Note: For a complete coupling, order a plug and a socket with the same coupling size.
For technical drawings and 3-D models, click on a part number.
Barbed sockets insert into tubing and secure with a clamp.
Through-wall sockets are also known as bulkhead sockets and panel-mount sockets; they mount through your wall or panel to create an inlet or outlet.
| Coupling Size | For Plug OD | For Tube ID | Material | Color | Clarity | Max. Pressure | For Hole Dia. | For Max. Wall Thick. | Each | |
Open Flow | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| 3/8 | 3/4" | 3/8" | Polypropylene Plastic | Gray | Opaque | 60 psi @ 72° F | 1 13/16" | 1/4" | 0000000 | 000000 |
| 3/8 | 3/4" | 1/2" | Polypropylene Plastic | Gray | Opaque | 60 psi @ 72° F | 1 13/16" | 1/4" | 0000000 | 00000 |
With Shut-Off | ||||||||||
| 3/8 | 3/4" | 3/8" | Polypropylene Plastic | Gray | Opaque | 60 psi @ 72° F | 1 13/16" | 1/4" | 0000000 | 00000 |
| 3/8 | 3/4" | 1/2" | Polypropylene Plastic | Gray | Opaque | 60 psi @ 72° F | 1 13/16" | 1/4" | 0000000 | 00000 |