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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About Plastic and Rubber Tubing
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Hard Plastic Tubing for Drinking Water
Tubing meets NSF/ANSI Standard 61 for drinking water. It is made without plasticizers like DEHP, so it won’t impart tastes or odors to the fluid running through it. A lightweight alternative to copper tubing, it connects to fittings with no heat or soldering required. Tubing is opaque, so you cannot see inside the line.
CPVC tubing connects to socket-connect fittings with a CPVC primer and cement (also known as solvent weld). It can handle higher pressures than polyethylene tubing. It is rigid and will not bend. Tubing meets ASTM D2846 specifications and testing requirements for plastic hot- and cold-water distribution systems.
Copper tube size is the accepted designation of the copper tubing industry, not the actual tube OD.
- Rigid
- Compatible with Socket-Connect Tube Fittings
- Hard
- Temperature Range: 40° to 180° F
| Copper Tube Size  | ID | OD | Wall Thick. | Max. Pressure | Max. Vacuum | Specifications Met | Color | Length, ft. | Each | |
| 1/2 | 31/64" | 5/8" | 1/16" | 400 psi @ 72° F | 26 in. of Hg @ 72° F | ASTM D2846, NSF/ANSI 61 | Beige | 5 | 0000000 | 000000 |
| 3/4 | 23/32" | 7/8" | 5/64" | 400 psi @ 72° F | 26 in. of Hg @ 72° F | ASTM D2846, NSF/ANSI 61 | Beige | 5 | 0000000 | 00000 |
| 1 | 59/64" | 1 1/8" | 13/64" | 400 psi @ 72° F | 26 in. of Hg @ 72° F | ASTM D2846, NSF/ANSI 61 | Beige | 5 | 0000000 | 00000 |
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.
