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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Socket-Connect Fittings for Plastic Tubing—Drinking Water
- Temperature Range: 40° to 180° F
- Tubing: Use with hard CPVC plastic
- Specifications Met: ASTM D2846, National Standard Plumbing Code, NSF/ANSI 61, NSF/ANSI 372, UPC Compliant, NSF/ANSI 14
Slide CPVC tubing into the socket end of these fittings and seal with cement for a permanent connection. They are also known as solvent-weld fittings and CTS (Copper Tube Size) fittings.
Copper tube size is the accepted designation of the copper tubing industry, not the actual tube OD.
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 or retainer 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: See Table
- Temperature Range: 32° to 200° F
- Specifications Met: NSF/ANSI 61
| For Use With | Copper Tube Size  | For Tube OD | Material | Release Ring Material | Release Ring Color | Max. Pressure | Each | |
| Air, Drinking Water | 1/4 | 3/8" | Brass | Plastic | Black | 200 psi @ 72° F | 00000000 | 00000 |