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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Brass Push-to-Connect Fittings for Copper Tubing
- Tubing: Use with K, M, L copper, polyethylene plastic, CPVC
Connect these fittings to copper tubing with a push—no heat, solder, or flux required. They have an internal gripping ring and O-ring that hold the fitting secure. They also come with a tube support if you want to use them with polyethylene plastic (PEX) tubing. They are also known as instant fittings. Fittings are brass for good corrosion resistance. They are compatible with SharkBite® fittings. To adhere to safety standards for drinking water systems, use fittings that meet NSF/ANSI 61.
- For Use With:
1 1/4 Copper Tube Size: Air, Drinking Water, Water
All Other Copper Tube Size: Air, Drinking Water - Temperature Range: 32° to 200° F
- Specifications Met: NSF/ANSI 61
| Copper Tube Size  | For Tube OD | Pipe Size | Material | Release Ring Material | Release Ring Color | Max. Pressure | Each | |
NPT Threads | ||||||||
|---|---|---|---|---|---|---|---|---|
| 1 1/4 | 1 3/8" | 1 1/4 | Brass | Plastic | Black | 200 psi @ 72° F | 00000000 | 000000 |
- For Use With: Air, Water, Drinking Water
- Temperature Range: 32° to 200° F
- Specifications Met: NSF/ANSI 61
Use adapters for polybutylene tubing to transition from old water supply plumbing to copper or polyethylene tubing.
- For Use With: Air, Drinking Water
- Temperature Range: 32° to 200° F
- Specifications Met: NSF/ANSI 61
| Copper Tube Size | For Tube OD | Material | Release Ring Material | Release Ring Color | Max. Pressure | Each | |
| 3/8 | 1/2" | Brass | Plastic | Black | 200 psi @ 72° F | 0000000 | 000000 |
| 1/2 | 5/8" | Brass | Plastic | Black | 200 psi @ 72° F | 0000000 | 0000 |
| 3/4 | 7/8" | Brass | Plastic | Black | 200 psi @ 72° F | 0000000 | 0000 |
| 1 | 1 1/8" | Brass | Plastic | Black | 200 psi @ 72° F | 0000000 | 00000 |
| 1 1/2 | 1 5/8" | Brass | Plastic | Black | 200 psi @ 72° F | 0000000 | 00000 |
| 2 | 2 1/8" | Brass | Plastic | Black | 200 psi @ 72° F | 0000000 | 00000 |
- For Use With: Air, Drinking Water, Water
- Temperature Range: 32° to 200° F
- Specifications Met: NSF/ANSI 61
Fittings with offset configuration are smooth inside the longer end, giving extra clearance so they can slide freely over the end of a tube to repair a leak. They’re also known as slip couplings and repair couplings.
- For Use With: Air, Drinking Water
- Temperature Range: 32° to 200° F
- Specifications Met: NSF/ANSI 61
Tube Connection (A) | Tube Connection (B) | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Copper Tube Size | For Tube OD | Copper Tube Size | For Tube OD | Material | Release Ring Material | Release Ring Color | Max. Pressure | Each | |
| 1/2 | 5/8" | 3/8 | 1/2" | Brass | Plastic | Black | 200 psi @ 72° F | 0000000 | 00000 |
| 3/4 | 7/8" | 1/2 | 5/8" | Brass | Plastic | Black | 200 psi @ 72° F | 0000000 | 0000 |
| 1 | 1 1/8" | 3/4 | 7/8" | Brass | Plastic | Black | 200 psi @ 72° F | 0000000 | 00000 |
A release clip or release wrench is required to disconnect the fitting from the tubing.
| For Copper Tube Size | For Tube OD | Each | |
| 1 1/4, 1 1/2, 2 | 1 3/8", 1 5/8", 2 1/8" | 0000000 | 000000 |
Use the chamfering and deburring depth gauge tool (sold separately) to deburr tubing before inserting it into the fitting.
| For Copper Tube Size | For Tube OD | Each | |
| 3/8, 1/2, 3/4, 1 | 1/2", 5/8", 7/8", 1 1/8" | 00000000 | 000000 |
Plastic Push-to-Connect Fittings for Copper Tubing
- For Use With: Drinking Water
- Temperature Range: 35° to 180° F
- Tubing: Use with K, M, L copper, polyethylene plastic
- Specifications Met: NSF/ANSI 61
Made of plastic, these fittings are lighter than our brass push-to-connect fittings. They connect to copper tubing with a push—no heat, solder, or flux required. They have an internal gripping ring and O-ring that hold the fitting secure. To disconnect, push on the release ring and pull the tubing out of the fitting. They are also known as instant fittings. Fittings come with a tube support if you want to use them with polyethylene plastic (PEX) tubing. They meet NSF/ANSI 61 safety standards for use with drinking water systems.
Copper tube size is the accepted designation of the copper tubing industry, not the actual tube OD.
For technical drawings and 3-D models, click on a part number.
| Copper Tube Size | For Tube OD | Material | Color | Release Ring Material | Release Ring Color | Max. Pressure | Each | |
| 3/8 | 1/2" | Polysulfone Plastic | White | Plastic | White | 250 psi @ 72° F | 0000000 | 00000 |
| 1/2 | 5/8" | Polysulfone Plastic | White | Plastic | White | 250 psi @ 72° F | 0000000 | 0000 |
| 3/4 | 7/8" | Polysulfone Plastic | White | Plastic | White | 250 psi @ 72° F | 0000000 | 00000 |
| 1 | 1 1/8" | Polysulfone Plastic | White | Plastic | White | 250 psi @ 72° F | 0000000 | 00000 |
Tube Connection (A) | Tube Connection (B) | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Copper Tube Size | For Tube OD | Copper Tube Size | For Tube OD | Material | Color | Release Ring Material | Release Ring Color | Max. Pressure | Each | |
| 1/2 | 5/8" | 3/8 | 1/2" | Polysulfone Plastic | White | Plastic | White | 250 psi @ 72° F | 0000000 | 000000 |
| 3/4 | 7/8" | 1/2 | 5/8" | Polysulfone Plastic | White | Plastic | White | 250 psi @ 72° F | 0000000 | 00000 |
| 1 | 1 1/8" | 3/4 | 7/8" | Polysulfone Plastic | White | Plastic | White | 250 psi @ 72° F | 0000000 | 00000 |