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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High-Pressure Hard Plastic Tubing for Air and Water
Excellent strength and durability allow this tubing to handle high-pressure air and water applications.
Nylon tubing can handle higher pressures than polycarbonate tubing. It won’t crack even at low temperatures. Tubing is semi-flexible, so it is good for gradual bends. Semi-clear tubing gives you a limited view inside the line. Opaque tubing doesn’t allow you to see what’s flowing through the line.
- Semi-Flexible
- Compatible with Compression Fittings, Push to Connect Tube Fittings or both; see For Connection Style
- See table for hardness
- Temperature Range: See table
- Semi-Flexible
- Compatible with Compression Tube Fittings
- See table for hardness
- Temperature Range: See table
Brass Low-Pressure Barbed Tube Fittings for Air and Water
Made of brass, these fittings resist corrosion from water and are more durable than plastic and aluminum fittings. Use them for low-pressure HVAC systems, drain lines, and other fluid transfer applications, as well as air lines where water vapor and condensate form. The barbs tightly grip tubing for a secure hold. For the best grip, make sure your tubing is squarely cut.
NPT adapters require thread sealant (not included) for a leak-tight seal.
- Temperature Range: See table
- Tubing: See table
For Tube | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| For Tube ID | Pipe Size  | Number of Barbs | Straight Body Shape | Material | Max. Pressure | Temp. Range, °F | Lg. | Material | Hardness Rating | Hardness | Pkg. Qty. | Pkg. | |
NPT Threads | |||||||||||||
| 0.19" | 1/8 | Single | Hex | Brass | 125 psi @ 72° F | -40° to 500° | 31/32" | Polyurethane Rubber | Firm | Durometer 85A | 1 | 5454K217 | 00000 |