About Plastic and Rubber Tubing
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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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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.
Polyethylene tubing is compatible with Viega PEX tubing. It connects to barbed fittings with a crimping tool and crimping ring (both sold separately). Tubing is semi-flexible, so it is good for gradual bends. It meets ASTM F876 and ASTM F877 specification and testing requirements for material quality and dimensions of polyethylene (PEX) tubing. It is IAPMO certified to comply with the International Association for Plumbing and Mechanical Officials product performance standards and the Uniform Plumbing Code (UPC) for installation and repair of plumbing 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.
- Semi-Flexible
- Compatible with Barbed Tube Fittings
- Hard
- Temperature Range: 72° to 180° F
| Copper Tube Size  | ID | OD | Wall Thick. | Bend Radius | Max. Pressure | Specifications Met | Choose a Color | Lengths, ft. | Per Ft. | |
| 1/4 | 1/4" | 3/8" | 1/16" | 3" | 160 psi @ 72° F | ASTM F876, ASTM F877, IAPMO Certified, NSF/ANSI 61 | White | 00000000 | 00000 | |
| 3/8 | 3/8" | 1/2" | 1/16" | 4" | 160 psi @ 72° F | ASTM F876, ASTM F877, IAPMO Certified, NSF/ANSI 61 | 00000000 | 000 | ||
| 1/2 | 1/2" | 5/8" | 1/16" | 5" | 160 psi @ 72° F | ASTM F876, ASTM F877, IAPMO Certified, NSF/ANSI 61 | 00000000 | 000 | ||
| 3/4 | 11/16" | 7/8" | 3/32" | 7" | 160 psi @ 72° F | ASTM F876, ASTM F877, IAPMO Certified, NSF/ANSI 61 | 00000000 | 0000 | ||
| 1 | 7/8" | 1 1/8" | 1/8" | 9" | 160 psi @ 72° F | ASTM F876, ASTM F877, IAPMO Certified, NSF/ANSI 61 | 00000000 | 0000 |
Barbed Tube Fittings for Drinking Water
- Temperature Range: 32° to 180° F
- Tubing:
All Fittings: Use with hard polyethylene plastic
Socket-Connect Fittings: Use with hard polyethylene plastic or copper - Specifications Met: See table
Connect these fittings to tubing with a ring and a crimping tool (both sold separately). They have multiple barbs that grip onto tubing for a secure hold. Fittings are compatible with Viega PEX tubing. Safe to use with drinking water, these fittings meet the strict standards of NSF/ANSI 61.
Brass fittings offer good corrosion resistance.
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.
| For Tube ID | Pipe Size | Material | Max. Pressure | Specifications Met | Each | |
NPT Threads | ||||||
|---|---|---|---|---|---|---|
| 3/8" | 1/2 | Brass | 160 psi @ 72° F | ASTM F1807, NSF/ANSI 61 | 00000000 | 00000 |
| 1/2" | 1/2 | Brass | 160 psi @ 72° F | ASTM F1807, NSF/ANSI 61 | 0000000 | 0000 |
| 1/2" | 3/4 | Brass | 160 psi @ 72° F | ASTM F1807, NSF/ANSI 61 | 00000000 | 0000 |
| 3/4" | 1/2 | Brass | 160 psi @ 72° F | ASTM F1807, NSF/ANSI 61 | 00000000 | 0000 |
| 3/4" | 3/4 | Brass | 160 psi @ 72° F | ASTM F1807, NSF/ANSI 61 | 0000000 | 0000 |
| 3/4" | 1 | Brass | 160 psi @ 72° F | ASTM F1807, NSF/ANSI 61 | 00000000 | 00000 |
| 1" | 3/4 | Brass | 160 psi @ 72° F | ASTM F1807, NSF/ANSI 61 | 00000000 | 00000 |
| 1" | 1 | Brass | 160 psi @ 72° F | ASTM F1807, NSF/ANSI 61 | 00000000 | 0000 |
| For Tube ID | Pipe Size | Material | Max. Pressure | Specifications Met | Each | |
NPT Threads | ||||||
|---|---|---|---|---|---|---|
| 3/8" | 1/2 | Brass | 160 psi @ 72° F | ASTM F1807, NSF/ANSI 61 | 00000000 | 00000 |
| 1/2" | 3/4 | Brass | 160 psi @ 72° F | ASTM F1807, NSF/ANSI 61 | 00000000 | 0000 |
| 1/2" | 1/2 | Brass | 160 psi @ 72° F | ASTM F1807, NSF/ANSI 61 | 0000000 | 0000 |
| 3/4" | 3/4 | Brass | 160 psi @ 72° F | ASTM F1807, NSF/ANSI 61 | 0000000 | 0000 |
| 3/4" | 1 | Brass | 160 psi @ 72° F | ASTM F1807, NSF/ANSI 61 | 00000000 | 00000 |
| 1" | 1 | Brass | 160 psi @ 72° F | ASTM F1807, NSF/ANSI 61 | 00000000 | 00000 |
Crimp or solder a female press-connect or solder-connect tube fitting onto the male socket-connect end of this fitting to create a leak-tight connection. To crimp, you’ll need a press-connect crimping tool. Solder-connect fittings are also known as sweat fittings.
Socket-Connect | ||||||||
|---|---|---|---|---|---|---|---|---|
| For Tube ID (Barbed) | Copper Tube Size | Tube OD | Type | Material | Max. Pressure | Specifications Met | Each | |
| 1/2" | 1/2 | 5/8" | Press, Solder | Brass | 160 psi @ 72° F | ASTM F1807, NSF/ANSI 61 | 0000000 | 00000 |
| 3/4" | 3/4 | 7/8" | Press, Solder | Brass | 160 psi @ 72° F | ASTM F1807, NSF/ANSI 61 | 0000000 | 0000 |
| 1" | 1 | 1 1/8" | Press, Solder | Brass | 160 psi @ 72° F | ASTM F1807, NSF/ANSI 61 | 00000000 | 00000 |
Use a press-connect crimping tool to secure the press-connect end to tubing or the male socket-connect tube end of a fitting without heat or soldering. They have an internal O-ring that creates a leak-tight connection.
Socket-Connect | ||||||||
|---|---|---|---|---|---|---|---|---|
| For Tube ID (Barbed) | Copper Tube Size | For Tube OD | Type | Material | Max. Pressure | Specifications Met | Each | |
| 1/2" | 1/2 | 5/8" | Press | Bronze | 160 psi @ 72° F | ASTM F1807, NSF/ANSI 61 | 00000000 | 00000 |
| 1/2" | 3/4 | 7/8" | Press | Bronze | 160 psi @ 72° F | ASTM F1807, NSF/ANSI 61 | 00000000 | 00000 |
| 3/4" | 1/2 | 5/8" | Press | Bronze | 160 psi @ 72° F | ASTM F1807, NSF/ANSI 61 | 00000000 | 0000 |
| 3/4" | 3/4 | 7/8" | Press | Bronze | 160 psi @ 72° F | ASTM F1807, NSF/ANSI 61 | 00000000 | 00000 |
| 1" | 1 | 1 1/8" | Press | Bronze | 160 psi @ 72° F | ASTM F1807, NSF/ANSI 61 | 00000000 | 00000 |
Solder-connect fittings create a permanent, leak-tight connection to tubing or the male socket-connect tube end of another fitting. They are also known as sweat fittings.
Socket-Connect | ||||||||
|---|---|---|---|---|---|---|---|---|
| For Tube ID (Barbed) | Copper Tube Size | For Tube OD | Type | Material | Max. Pressure | Specifications Met | Each | |
| 1/2" | 1/2 | 5/8" | Solder | Brass | 160 psi @ 72° F | ASTM F1807, NSF/ANSI 61 | 0000000 | 00000 |
| 3/4" | 3/4 | 7/8" | Solder | Brass | 160 psi @ 72° F | ASTM F1807, NSF/ANSI 61 | 0000000 | 0000 |
| 1" | 1 | 1 1/8" | Solder | Brass | 160 psi @ 72° F | ASTM F1807, NSF/ANSI 61 | 00000000 | 0000 |
These adapters have a mounting base to anchor the fitting.
Solder-connect fittings create a permanent, leak-tight connection to tubing or the male socket-connect tube end of another fitting. They are also known as sweat fittings.
| For Tube ID (A) | For Tube ID (B) | Material | Max. Pressure | Specifications Met | Each | |
| 3/4" | 1/2" | PPSU | 160 psi @ 72° F | ASTM F2159, NSF/ANSI 61 | 00000000 | 00000 |
Inline tees are also known as branch tees.
| For Tube ID (A) | For Tube ID (B) | Material | Max. Pressure | Specifications Met | Each | |
| 1/2" | 3/4" | PPSU | 160 psi @ 72° F | ASTM F2159, NSF/ANSI 61 | 0000000 | 00000 |
| 3/4" | 1/2" | PPSU | 160 psi @ 72° F | ASTM F2159, NSF/ANSI 61 | 00000000 | 0000 |
| 3/4" | 1" | PPSU | 160 psi @ 72° F | ASTM F2159, NSF/ANSI 61 | 00000000 | 0000 |
| 1" | 3/4" | PPSU | 160 psi @ 72° F | ASTM F2159, NSF/ANSI 61 | 00000000 | 0000 |
Plugs insert into the end of a fitting.
| For Tube ID | Material | Max. Pressure | Specifications Met | Pkg. Qty. | Pkg. | |
| 3/8" | PPSU | 160 psi @ 72° F | ASTM F2159, NSF/ANSI 61 | 10 | 00000000 | 00000 |
| 1/2" | PPSU | 160 psi @ 72° F | ASTM F2159, NSF/ANSI 61 | 10 | 00000000 | 0000 |
| 3/4" | PPSU | 160 psi @ 72° F | ASTM F2159, NSF/ANSI 61 | 10 | 00000000 | 0000 |
| 1" | PPSU | 160 psi @ 72° F | ASTM F2159, NSF/ANSI 61 | 10 | 00000000 | 00000 |
