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.
More
Moisture-Resistant Push-to-Connect Tube Fittings for Air and Water

These fittings won’t absorb moisture, so they’re good for water and high-humidity air applications. Also known as instant fittings, they connect to tubing with a push, and an internal gripping ring and O-ring hold the tubing tight. To disconnect, push on the release ring and pull the tubing out of the fitting. They have good corrosion resistance.
Static dissipative fittings divert static electricity, so they’re safe to use near sensitive electronics.

- For Use With: Air, Lubricated Air
- Temperature Range: 32° to 100° F
- Tubing: Use with firm (Durometer 90A-95A) nylon plastic or polyurethane rubber
Fittings with tube stem connections insert into the push-to-connect end of another fitting in place of a length of tubing.
Release Ring | ||||||||
---|---|---|---|---|---|---|---|---|
Tube Stem OD, mm | For Tube OD, mm | Material | Color | Material | Color | Max. Pressure | Each | |
6 | 4 | Polybutylene Plastic | Black | Plastic | Black | 140 psi @ 72° F | 00000000 | 00000 |
8 | 6 | Polybutylene Plastic | Black | Plastic | Black | 140 psi @ 72° F | 00000000 | 0000 |
10 | 8 | Polybutylene Plastic | Black | Plastic | Black | 140 psi @ 72° F | 00000000 | 00000 |
12 | 10 | Polybutylene Plastic | Black | Plastic | Black | 140 psi @ 72° F | 00000000 | 0000 |

- For Use With: Air, Lubricated Air
- Temperature Range: 32° to 100° F
- Tubing: Use with firm (Durometer 90A-95A) nylon plastic or polyurethane rubber
Release Ring | |||||||
---|---|---|---|---|---|---|---|
For Tube OD, mm | Material | Color | Material | Color | Max. Pressure | Each | |
4 | Polybutylene Plastic | Black | Plastic | Black | 140 psi @ 72° F | 00000000 | 00000 |
6 | Polybutylene Plastic | Black | Plastic | Black | 140 psi @ 72° F | 00000000 | 0000 |
8 | Polybutylene Plastic | Black | Plastic | Black | 140 psi @ 72° F | 00000000 | 0000 |
10 | Polybutylene Plastic | Black | Plastic | Black | 140 psi @ 72° F | 00000000 | 0000 |
12 | Polybutylene Plastic | Black | Plastic | Black | 140 psi @ 72° F | 00000000 | 00000 |

- For Use With: Air, Lubricated Air
- Temperature Range: 32° to 100° F
- Tubing: Use with firm (Durometer 90A-95A) nylon plastic or polyurethane rubber
Release Ring | |||||||||
---|---|---|---|---|---|---|---|---|---|
For Tube OD, mm | Material | Color | Material | Color | Max. Pressure | Mount Type | Mounting Fasteners Included | Each | |
4 | Polybutylene Plastic | Black | Plastic | Black | 140 psi @ 72° F | Screw On | No | 00000000 | 000000 |
6 | Polybutylene Plastic | Black | Plastic | Black | 140 psi @ 72° F | Screw On | No | 00000000 | 0000 |
8 | Polybutylene Plastic | Black | Plastic | Black | 140 psi @ 72° F | Screw On | No | 00000000 | 0000 |
10 | Polybutylene Plastic | Black | Plastic | Black | 140 psi @ 72° F | Screw On | No | 00000000 | 0000 |
12 | Polybutylene Plastic | Black | Plastic | Black | 140 psi @ 72° F | Screw On | No | 00000000 | 00000 |

- For Use With: Air, Lubricated Air
- Temperature Range: 32° to 100° F
- Tubing: Use with firm (Durometer 90A-95A) nylon plastic or polyurethane rubber
Release Ring | |||||||||
---|---|---|---|---|---|---|---|---|---|
For Tube OD, mm | Material | Color | Material | Color | Max. Pressure | Mount Type | Mounting Fasteners Included | Each | |
4 | Polybutylene Plastic | Black | Plastic | Black | 140 psi @ 72° F | Screw On | No | 00000000 | 00000 |
6 | Polybutylene Plastic | Black | Plastic | Black | 140 psi @ 72° F | Screw On | No | 00000000 | 0000 |
8 | Polybutylene Plastic | Black | Plastic | Black | 140 psi @ 72° F | Screw On | No | 00000000 | 0000 |
10 | Polybutylene Plastic | Black | Plastic | Black | 140 psi @ 72° F | Screw On | No | 00000000 | 00000 |
12 | Polybutylene Plastic | Black | Plastic | Black | 140 psi @ 72° F | Screw On | No | 00000000 | 00000 |
Universal-Thread Moisture-Resistant
Push-to-Connect Tube Fittings for Air and Water


Threads
with Gasket
- Temperature Range: 32° to 100° F
- Tubing: Use with firm (Durometer 90A-95A) nylon plastic or polyurethane rubber
The threads on these fittings mate with NPT, NPTF (Dryseal), BSPT, and BSPP threads. The male threads have a gasket to protect against leaks. Fittings are moisture and corrosion resistant, so they’re good for water and humid air applications. Also known as instant fittings, they connect to tubing with a push, and an internal gripping ring and O-ring hold the tubing tight. To disconnect, push on the release ring and pull the tubing out of the fitting.
Static dissipative fittings divert static electricity.


Threads
with Gasket
Release Ring | |||||||||
---|---|---|---|---|---|---|---|---|---|
For Tube OD, mm | Pipe Size | Tube Connection Material | Pipe Connection Material | Gasket Material | Material | Color | Max. Pressure | Each | |
3 | 1/8 | Brass | Nickel-Plated Brass | 304 Stainless Steel, Buna-N Rubber | Plastic | Black | 140 psi @ 72° F | 000000000 | 000000 |
4 | 1/8 | Brass | Nickel-Plated Brass | 304 Stainless Steel, Buna-N Rubber | Plastic | Black | 140 psi @ 72° F | 0000000 | 0000 |
4 | 1/4 | Brass | Nickel-Plated Brass | 304 Stainless Steel, Buna-N Rubber | Plastic | Black | 140 psi @ 72° F | 0000000 | 0000 |
6 | 1/8 | Brass | Nickel-Plated Brass | 304 Stainless Steel, Buna-N Rubber | Plastic | Black | 140 psi @ 72° F | 0000000 | 0000 |
6 | 1/4 | Brass | Nickel-Plated Brass | 304 Stainless Steel, Buna-N Rubber | Plastic | Black | 140 psi @ 72° F | 0000000 | 0000 |
6 | 3/8 | Brass | Nickel-Plated Brass | 304 Stainless Steel, Buna-N Rubber | Plastic | Black | 140 psi @ 72° F | 0000000 | 0000 |
8 | 1/8 | Brass | Nickel-Plated Brass | 304 Stainless Steel, Buna-N Rubber | Plastic | Black | 140 psi @ 72° F | 0000000 | 0000 |
8 | 1/4 | Brass | Nickel-Plated Brass | 304 Stainless Steel, Buna-N Rubber | Plastic | Black | 140 psi @ 72° F | 0000000 | 0000 |
8 | 3/8 | Brass | Nickel-Plated Brass | 304 Stainless Steel, Buna-N Rubber | Plastic | Black | 140 psi @ 72° F | 0000000 | 0000 |
10 | 1/8 | Brass | Nickel-Plated Brass | 304 Stainless Steel, Buna-N Rubber | Plastic | Black | 140 psi @ 72° F | 0000000 | 0000 |
10 | 1/4 | Brass | Nickel-Plated Brass | 304 Stainless Steel, Buna-N Rubber | Plastic | Black | 140 psi @ 72° F | 0000000 | 0000 |
10 | 3/8 | Brass | Nickel-Plated Brass | 304 Stainless Steel, Buna-N Rubber | Plastic | Black | 140 psi @ 72° F | 0000000 | 0000 |
10 | 1/2 | Brass | Nickel-Plated Brass | 304 Stainless Steel, Buna-N Rubber | Plastic | Black | 140 psi @ 72° F | 0000000 | 0000 |
12 | 1/4 | Brass | Nickel-Plated Brass | 304 Stainless Steel, Buna-N Rubber | Plastic | Black | 140 psi @ 72° F | 0000000 | 0000 |
12 | 3/8 | Brass | Nickel-Plated Brass | 304 Stainless Steel, Buna-N Rubber | Plastic | Black | 140 psi @ 72° F | 0000000 | 0000 |
12 | 1/2 | Brass | Nickel-Plated Brass | 304 Stainless Steel, Buna-N Rubber | Plastic | Black | 140 psi @ 72° F | 0000000 | 0000 |


Threads
with Gasket
Fittings with intermittent swivel rotate 360° before and after installation as needed to allow movement in the system and to prevent kinking.
For Tube OD, mm | Pipe Size | Tube Connection Material | Pipe Connection Material | Gasket Material | Color | Release Ring Color | Max. Pressure | Swivel Type | Each | |
4 | 1/8 | Polybutylene Plastic | Nickel-Plated Brass | 304 Stainless Steel, Buna-N Rubber | Black | Black | 140 psi @ 72° F | Intermittent | 0000000 | 00000 |
4 | 1/4 | Polybutylene Plastic | Nickel-Plated Brass | 304 Stainless Steel, Buna-N Rubber | Black | Black | 140 psi @ 72° F | Intermittent | 0000000 | 0000 |
6 | 1/8 | Polybutylene Plastic | Nickel-Plated Brass | 304 Stainless Steel, Buna-N Rubber | Black | Black | 140 psi @ 72° F | Intermittent | 0000000 | 0000 |
6 | 1/4 | Polybutylene Plastic | Nickel-Plated Brass | 304 Stainless Steel, Buna-N Rubber | Black | Black | 140 psi @ 72° F | Intermittent | 0000000 | 0000 |
6 | 3/8 | Polybutylene Plastic | Nickel-Plated Brass | 304 Stainless Steel, Buna-N Rubber | Black | Black | 140 psi @ 72° F | Intermittent | 0000000 | 0000 |
8 | 1/8 | Polybutylene Plastic | Nickel-Plated Brass | 304 Stainless Steel, Buna-N Rubber | Black | Black | 140 psi @ 72° F | Intermittent | 0000000 | 0000 |
8 | 1/4 | Polybutylene Plastic | Nickel-Plated Brass | 304 Stainless Steel, Buna-N Rubber | Black | Black | 140 psi @ 72° F | Intermittent | 0000000 | 0000 |
8 | 3/8 | Polybutylene Plastic | Nickel-Plated Brass | 304 Stainless Steel, Buna-N Rubber | Black | Black | 140 psi @ 72° F | Intermittent | 0000000 | 0000 |
10 | 1/8 | Polybutylene Plastic | Nickel-Plated Brass | 304 Stainless Steel, Buna-N Rubber | Black | Black | 140 psi @ 72° F | Intermittent | 0000000 | 0000 |
10 | 1/4 | Polybutylene Plastic | Nickel-Plated Brass | 304 Stainless Steel, Buna-N Rubber | Black | Black | 140 psi @ 72° F | Intermittent | 0000000 | 0000 |
10 | 3/8 | Polybutylene Plastic | Nickel-Plated Brass | 304 Stainless Steel, Buna-N Rubber | Black | Black | 140 psi @ 72° F | Intermittent | 0000000 | 0000 |
10 | 1/2 | Polybutylene Plastic | Nickel-Plated Brass | 304 Stainless Steel, Buna-N Rubber | Black | Black | 140 psi @ 72° F | Intermittent | 0000000 | 00000 |
12 | 1/4 | Polybutylene Plastic | Nickel-Plated Brass | 304 Stainless Steel, Buna-N Rubber | Black | Black | 140 psi @ 72° F | Intermittent | 0000000 | 0000 |
12 | 3/8 | Polybutylene Plastic | Nickel-Plated Brass | 304 Stainless Steel, Buna-N Rubber | Black | Black | 140 psi @ 72° F | Intermittent | 0000000 | 00000 |
12 | 1/2 | Polybutylene Plastic | Nickel-Plated Brass | 304 Stainless Steel, Buna-N Rubber | Black | Black | 140 psi @ 72° F | Intermittent | 0000000 | 00000 |


Threads
with Gasket
Fittings with intermittent swivel rotate 360° before and after installation as needed to allow movement in the system and to prevent kinking.
For Tube OD, mm | Pipe Size | Tube Material | Pipe Material | Gasket Material | Color | Release Ring Color | Max. Pressure | Swivel Type | Each | |
4 | 1/8 | Polybutylene Plastic | Nickel-Plated Brass | 304 Stainless Steel, Buna-N Rubber | Black | Black | 140 psi @ 72° F | Intermittent | 0000000 | 000000 |
4 | 1/4 | Polybutylene Plastic | Nickel-Plated Brass | 304 Stainless Steel, Buna-N Rubber | Black | Black | 140 psi @ 72° F | Intermittent | 0000000 | 00000 |
6 | 1/8 | Polybutylene Plastic | Nickel-Plated Brass | 304 Stainless Steel, Buna-N Rubber | Black | Black | 140 psi @ 72° F | Intermittent | 0000000 | 0000 |
6 | 1/4 | Polybutylene Plastic | Nickel-Plated Brass | 304 Stainless Steel, Buna-N Rubber | Black | Black | 140 psi @ 72° F | Intermittent | 0000000 | 0000 |
6 | 3/8 | Polybutylene Plastic | Nickel-Plated Brass | 304 Stainless Steel, Buna-N Rubber | Black | Black | 140 psi @ 72° F | Intermittent | 0000000 | 0000 |
8 | 1/8 | Polybutylene Plastic | Nickel-Plated Brass | 304 Stainless Steel, Buna-N Rubber | Black | Black | 140 psi @ 72° F | Intermittent | 0000000 | 00000 |
8 | 1/4 | Polybutylene Plastic | Nickel-Plated Brass | 304 Stainless Steel, Buna-N Rubber | Black | Black | 140 psi @ 72° F | Intermittent | 0000000 | 0000 |
8 | 3/8 | Polybutylene Plastic | Nickel-Plated Brass | 304 Stainless Steel, Buna-N Rubber | Black | Black | 140 psi @ 72° F | Intermittent | 0000000 | 00000 |
10 | 1/8 | Polybutylene Plastic | Nickel-Plated Brass | 304 Stainless Steel, Buna-N Rubber | Black | Black | 140 psi @ 72° F | Intermittent | 0000000 | 00000 |
10 | 1/4 | Polybutylene Plastic | Nickel-Plated Brass | 304 Stainless Steel, Buna-N Rubber | Black | Black | 140 psi @ 72° F | Intermittent | 0000000 | 00000 |
10 | 3/8 | Polybutylene Plastic | Nickel-Plated Brass | 304 Stainless Steel, Buna-N Rubber | Black | Black | 140 psi @ 72° F | Intermittent | 0000000 | 00000 |
10 | 1/2 | Polybutylene Plastic | Nickel-Plated Brass | 304 Stainless Steel, Buna-N Rubber | Black | Black | 140 psi @ 72° F | Intermittent | 0000000 | 00000 |
12 | 1/4 | Polybutylene Plastic | Nickel-Plated Brass | 304 Stainless Steel, Buna-N Rubber | Black | Black | 140 psi @ 72° F | Intermittent | 0000000 | 00000 |
12 | 3/8 | Polybutylene Plastic | Nickel-Plated Brass | 304 Stainless Steel, Buna-N Rubber | Black | Black | 140 psi @ 72° F | Intermittent | 0000000 | 00000 |
12 | 1/2 | Polybutylene Plastic | Nickel-Plated Brass | 304 Stainless Steel, Buna-N Rubber | Black | Black | 140 psi @ 72° F | Intermittent | 0000000 | 00000 |


Threads
with Gasket
Fittings with intermittent swivel rotate 360° before and after installation as needed to allow movement in the system and to prevent kinking.
For Tube OD, mm | Pipe Size | Material | Color | Release Ring Color | Max. Pressure | Swivel Type | Each | |
4 | 1/8 | Polybutylene Plastic | Black | Black | 140 psi @ 72° F | Intermittent | 0000000 | 000000 |
4 | 1/4 | Polybutylene Plastic | Black | Black | 140 psi @ 72° F | Intermittent | 0000000 | 00000 |
6 | 1/8 | Polybutylene Plastic | Black | Black | 140 psi @ 72° F | Intermittent | 0000000 | 0000 |
6 | 1/4 | Polybutylene Plastic | Black | Black | 140 psi @ 72° F | Intermittent | 0000000 | 00000 |
6 | 3/8 | Polybutylene Plastic | Black | Black | 140 psi @ 72° F | Intermittent | 0000000 | 00000 |
8 | 1/8 | Polybutylene Plastic | Black | Black | 140 psi @ 72° F | Intermittent | 0000000 | 00000 |
8 | 1/4 | Polybutylene Plastic | Black | Black | 140 psi @ 72° F | Intermittent | 0000000 | 00000 |
8 | 3/8 | Polybutylene Plastic | Black | Black | 140 psi @ 72° F | Intermittent | 0000000 | 00000 |
10 | 1/8 | Polybutylene Plastic | Black | Black | 140 psi @ 72° F | Intermittent | 0000000 | 00000 |
10 | 1/4 | Polybutylene Plastic | Black | Black | 140 psi @ 72° F | Intermittent | 0000000 | 00000 |
10 | 3/8 | Polybutylene Plastic | Black | Black | 140 psi @ 72° F | Intermittent | 0000000 | 00000 |
12 | 1/4 | Polybutylene Plastic | Black | Black | 140 psi @ 72° F | Intermittent | 0000000 | 00000 |
12 | 3/8 | Polybutylene Plastic | Black | Black | 140 psi @ 72° F | Intermittent | 0000000 | 00000 |