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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Plastic Push-to-Connect Tube Fittings for Chemicals
- For Use With: Inch: Alcohol, Hydrochloric Acid, Nitric Acid, Sodium Carbonate, Sulfuric Acid
Metric: Acetic Acid, Alcohol, Arsenic Acid, Benzoic Acid, Fluoboric Acid, Sodium Carbonate, Sulfuric Acid - Temperature Range: Inch: 0° to 270° F
Metric: 32° to 175° F - Tubing: Use with hard (Durometer 55D-60D) FEP plastic
Also known as instant fittings, these chemical-resistant plastic fittings connect to tubing with a push. An internal gripping ring holds the tubing tight. To disconnect, push on the release ring and pull the tubing out of the fitting. Use these fittings in low-pressure applications.
PVDF fittings offer excellent chemical resistance, and can be used with hydrochloric acid and nitric acid. They withstand temperatures up to 270° F, higher than other push-to-connect fittings for chemicals. They are produced in a clean room and are bagged individually to prevent dirt and moisture from contaminating the inside. PVDF is also known as Kynar.
Fittings with UNS threads are also known as faucet connectors; they attach directly to a faucet threaded inlet or water line.
NPTF (Dryseal) threads are compatible with NPT threads. UN/UNF (SAE Straight) male threads have a gasket to protect against leaks. They are also known as O-ring boss threads.
For technical drawings and 3-D models, click on a part number.
(SAE Straight) Male
Threads with Gasket
Threaded connections can be taken apart as needed for maintenance and repair.
| For Tube OD | Pipe Size  | Thread Size | Material | Color | Gasket Material | Release Ring Color | Max. Pressure | Each | |
NPTF Threads | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| 1/4" | 1/8 | __ | PVDF Plastic | Black | __ | Gray | 300 psi @ 72° F | 0000000 | 00000 |
| 1/4" | 1/4 | __ | PVDF Plastic | Black | __ | Gray | 300 psi @ 72° F | 0000000 | 0000 |
| 1/4" | 3/8 | __ | PVDF Plastic | Black | __ | Gray | 300 psi @ 72° F | 0000000 | 0000 |
| 5/16" | 1/8 | __ | PVDF Plastic | Black | __ | Gray | 300 psi @ 72° F | 00000000 | 0000 |
| 5/16" | 1/4 | __ | PVDF Plastic | Black | __ | Gray | 300 psi @ 72° F | 00000000 | 0000 |
| 5/16" | 3/8 | __ | PVDF Plastic | Black | __ | Black | 300 psi @ 72° F | 00000000 | 0000 |
| 3/8" | 1/8 | __ | PVDF Plastic | Black | __ | Gray | 300 psi @ 72° F | 0000000 | 0000 |
| 3/8" | 1/4 | __ | PVDF Plastic | Black | __ | Gray | 300 psi @ 72° F | 0000000 | 0000 |
| 3/8" | 3/8 | __ | PVDF Plastic | Black | __ | Gray | 300 psi @ 72° F | 0000000 | 0000 |
| 3/8" | 1/2 | __ | PVDF Plastic | Black | __ | Gray | 300 psi @ 72° F | 0000000 | 0000 |
| 1/2" | 3/8 | __ | PVDF Plastic | Black | __ | Gray | 300 psi @ 72° F | 0000000 | 00000 |
| 1/2" | 1/2 | __ | PVDF Plastic | Black | __ | Gray | 300 psi @ 72° F | 0000000 | 00000 |
UN/UNF (SAE Straight) Threads | |||||||||
| 3/8" | __ | 9/16"-18 | PVDF Plastic | Black | PVDF Plastic | Gray | 300 psi @ 72° F | 00000000 | 00000 |
Threaded connections can be taken apart as needed for maintenance and repair.
| For Tube OD | Pipe Size | Thread Size | Material | Color | Release Ring Color | Max. Pressure | Each | |
NPTF Threads | ||||||||
|---|---|---|---|---|---|---|---|---|
| 1/4" | 1/8 | __ | PVDF Plastic | Black | Gray | 300 psi @ 72° F | 0000000 | 00000 |
| 1/4" | 1/4 | __ | PVDF Plastic | Black | Gray | 300 psi @ 72° F | 0000000 | 0000 |
| 5/16" | 1/4 | __ | PVDF Plastic | Black | Gray | 300 psi @ 72° F | 00000000 | 00000 |
| 3/8" | 1/4 | __ | PVDF Plastic | Black | Gray | 300 psi @ 72° F | 0000000 | 0000 |
| 3/8" | 3/8 | __ | PVDF Plastic | Black | Gray | 300 psi @ 72° F | 0000000 | 00000 |
| 3/8" | 1/2 | __ | PVDF Plastic | Black | Gray | 300 psi @ 72° F | 0000000 | 00000 |
| 1/2" | 3/8 | __ | PVDF Plastic | Black | Gray | 300 psi @ 72° F | 0000000 | 00000 |
| 1/2" | 1/2 | __ | PVDF Plastic | Black | Gray | 300 psi @ 72° F | 0000000 | 00000 |
UNS Threads | ||||||||
| 1/4" | __ | 7/16"-24 | PVDF Plastic | Black | Gray | 300 psi @ 72° F | 00000000 | 0000 |
| For Tube OD | Material | Color | Release Ring Color | Max. Pressure | Each | |
| 1/4" | PVDF Plastic | Black | Gray | 300 psi @ 72° F | 00000000 | 000000 |
Fittings with tube stem insert into the push-to-connect end of another fitting in place of a length of tubing.
Threaded connections can be taken apart as needed for maintenance and repair.
| Tube Stem OD | Pipe Size | Material | Color | Max. Pressure | Each | |
NPTF Threads | ||||||
|---|---|---|---|---|---|---|
| 1/4" | 1/8 | PVDF Plastic | Black | 300 psi @ 72° F | 0000000 | 00000 |
| 1/4" | 1/4 | PVDF Plastic | Black | 300 psi @ 72° F | 0000000 | 0000 |
| 3/8" | 1/4 | PVDF Plastic | Black | 300 psi @ 72° F | 0000000 | 0000 |
| 3/8" | 3/8 | PVDF Plastic | Black | 300 psi @ 72° F | 0000000 | 0000 |
| 1/2" | 3/8 | PVDF Plastic | Black | 300 psi @ 72° F | 00000000 | 0000 |
| 1/2" | 1/2 | PVDF Plastic | Black | 300 psi @ 72° F | 00000000 | 0000 |
Fittings with tube stem insert into the push-to-connect end of another fitting in place of a length of tubing.
Through-wall fittings are also known as bulkhead couplings and panel-mount couplings; they mount through your wall or panel to create an inlet or outlet.
| For Tube OD | Material | Color | Release Ring Color | Max. Pressure | For Hole Dia. | For Max. Wall Thick. | Each | |
| 1/4" | PVDF Plastic | Black | Gray | 300 psi @ 72° F | 7/8" | 1/2" | 0000000 | 00000 |
| 5/16" | PVDF Plastic | Black | Gray | 300 psi @ 72° F | 3/16" | 5/8" | 00000000 | 00000 |
| 3/8" | PVDF Plastic | Black | Gray | 300 psi @ 72° F | 1" | 5/8" | 0000000 | 00000 |
| 1/2" | PVDF Plastic | Black | Gray | 300 psi @ 72° F | 1 1/8" | 45/64" | 0000000 | 00000 |
| For Tube OD (Push to Connect) | For Tube OD (Flared) | Material | Color | Release Ring Color | Max. Pressure | Each | |
| 3/8" | 1/4" | PVDF Plastic | Black | Gray | 300 psi @ 72° F | 00000000 | 000000 |
Threaded connections can be taken apart as needed for maintenance and repair.
| For Tube OD | Pipe Size | Material | Color | Release Ring Color | Max. Pressure | Each | |
NPTF Threads | |||||||
|---|---|---|---|---|---|---|---|
| 1/4" | 1/8 | PVDF Plastic | Black | Gray | 300 psi @ 72° F | 0000000 | 00000 |
| 1/4" | 1/4 | PVDF Plastic | Black | Gray | 300 psi @ 72° F | 0000000 | 0000 |
| 1/4" | 3/8 | PVDF Plastic | Black | Gray | 300 psi @ 72° F | 0000000 | 00000 |
| 5/16" | 1/4 | PVDF Plastic | Black | Gray | 300 psi @ 72° F | 00000000 | 00000 |
| 3/8" | 1/4 | PVDF Plastic | Black | Gray | 300 psi @ 72° F | 0000000 | 0000 |
| 3/8" | 3/8 | PVDF Plastic | Black | Gray | 300 psi @ 72° F | 0000000 | 0000 |
Fittings with intermittent swivel rotate 360° before and after installation as needed to allow movement in the system and to prevent kinking.
Threaded connections can be taken apart as needed for maintenance and repair.
| For Tube OD | Pipe Size | Material | Color | Release Ring Color | Max. Pressure | Each | |
NPTF Threads | |||||||
|---|---|---|---|---|---|---|---|
| 1/4" | 1/8 | PVDF Plastic | Black | Gray | 300 psi @ 72° F | 0000000 | 00000 |
| 1/4" | 1/4 | PVDF Plastic | Black | Gray | 300 psi @ 72° F | 0000000 | 0000 |
| 1/4" | 3/8 | PVDF Plastic | Black | Gray | 300 psi @ 72° F | 0000000 | 00000 |
| 3/8" | 1/8 | PVDF Plastic | Black | Gray | 300 psi @ 72° F | 0000000 | 00000 |
| 3/8" | 1/4 | PVDF Plastic | Black | Gray | 300 psi @ 72° F | 0000000 | 00000 |
| 3/8" | 3/8 | PVDF Plastic | Black | Gray | 300 psi @ 72° F | 0000000 | 00000 |
Threaded connections can be taken apart as needed for maintenance and repair.
Fittings with tube stem insert into the push-to-connect end of another fitting in place of a length of tubing.
| Tube Stem OD | For Tube OD | Material | Color | Release Ring Color | Max. Pressure | Each | |
| 1/4" | 1/4" | PVDF Plastic | Black | Gray | 300 psi @ 72° F | 0000000 | 00000 |
| 1/4" | 3/8" | PVDF Plastic | Black | Gray | 300 psi @ 72° F | 0000000 | 0000 |
| 5/16" | 5/16" | PVDF Plastic | Black | Gray | 300 psi @ 72° F | 00000000 | 00000 |
| 3/8" | 1/4" | PVDF Plastic | Black | Gray | 300 psi @ 72° F | 0000000 | 0000 |
| 3/8" | 3/8" | PVDF Plastic | Black | Gray | 300 psi @ 72° F | 0000000 | 0000 |
| 1/2" | 1/2" | PVDF Plastic | Black | Gray | 300 psi @ 72° F | 0000000 | 00000 |
Fittings with tube stem insert into the push-to-connect end of another fitting in place of a length of tubing.
| For Tube OD (A) | For Tube OD (B) | Material | Color | Release Ring Color | Max. Pressure | Each | |
| 3/8" | 1/4" | PVDF Plastic | Black | Gray | 300 psi @ 72° F | 0000000 | 00000 |
Fittings with intermittent swivel rotate 360° before and after installation as needed to allow movement in the system and to prevent kinking.
Inline tees are also known as branch tees.
Threaded connections can be taken apart as needed for maintenance and repair.
Right-angle tees are also known as run tees.
Threaded connections can be taken apart as needed for maintenance and repair.
Inline tees are also known as branch tees.
| For Tube OD (A) | For Tube OD (B) | Material | Color | Release Ring Color | Max. Pressure | Each | |
| 3/8" | 1/4" | PVDF Plastic | Black | Gray | 300 psi @ 72° F | 0000000 | 000000 |
Caps fit over a tube stem end of a fitting or a piece of tubing.
| For Tube OD | Material | Color | Release Ring Color | Max. Pressure | Each | |
| 1/4" | PVDF Plastic | Black | Gray | 300 psi @ 72° F | 0000000 | 00000 |
