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Crack-Resistant PFA Pipe Fittings for Chemicals
- For Use With: Acetic Acid, Alcohol, Salt Water
- Max. Temperature: 150° F
Not only do these PFA fittings have the chemical resistance to handle acid and salt water, they also have better crack resistance than other plastic pipe fittings for chemicals. Also known as Schedule 80 fittings, they have thick, strong walls to handle heavy duty chemical processing applications. Fittings have a super-smooth interior for unrestricted flow. They are commonly used in high-purity chemical flow processes, such as semiconductor and clean room applications, because the material won’t leach contaminates into the line. Apply a non-hardening, plastic-compatible sealant to the male threads to prevent leaks. Tape or sealants with PTFE are not recommended for plastic-to-plastic threaded connections. When making a threaded connection be careful not to overtighten the threads. To connect, finger tighten the fitting, then wrench-tighten one to two turns.
Warning: Never use plastic pipe fittings and pipe with compressed air or gas.
Sealants cannot be sold to Colorado, Connecticut, District of Columbia, Delaware, Illinois, Indiana, Massachusetts, Maryland, Maine, Michigan, New Hampshire, New Jersey, Northern Virginia, New York, Ohio, Pennsylvania, Rhode Island, or Utah due to local VOC (Volatile Organic Compounds) regulations.
For technical drawings and 3-D models, click on a part number.

Pipe Size | Material | Color | Max. Pressure | Each | |
NPT Threads | |||||
---|---|---|---|---|---|
1/8 | PFA Plastic | White | 120 psi @ 72° F | 000000000 | 000000 |
1/4 | PFA Plastic | White | 120 psi @ 72° F | 000000000 | 00000 |
3/8 | PFA Plastic | White | 120 psi @ 72° F | 000000000 | 00000 |
1/2 | PFA Plastic | White | 100 psi @ 72° F | 000000000 | 00000 |
3/4 | PFA Plastic | White | 70 psi @ 72° F | 000000000 | 000000 |
Non-Hardening Thread Sealant (8-oz. Brush-Top Can) | 000000 | Each | 000000 |

Pipe Size | Material | Color | Max. Pressure | Each | |
NPT Threads | |||||
---|---|---|---|---|---|
1/8 | PFA Plastic | White | 120 psi @ 72° F | 000000000 | 000000 |
1/4 | PFA Plastic | White | 120 psi @ 72° F | 000000000 | 00000 |
3/8 | PFA Plastic | White | 120 psi @ 72° F | 000000000 | 00000 |
1/2 | PFA Plastic | White | 100 psi @ 72° F | 000000000 | 00000 |
3/4 | PFA Plastic | White | 70 psi @ 72° F | 000000000 | 00000 |
Non-Hardening Thread Sealant (8-oz. Brush-Top Can) | 000000 | Each | 000000 |

Pipe Size (A) | Pipe Size (B) | Material | Color | Max. Pressure | Each | |
NPT Threads | ||||||
---|---|---|---|---|---|---|
1/4 | 1/8 | PFA Plastic | White | 120 psi @ 72° F | 000000000 | 000000 |
3/8 | 1/4 | PFA Plastic | White | 120 psi @ 72° F | 000000000 | 00000 |
1/2 | 1/4 | PFA Plastic | White | 100 psi @ 72° F | 000000000 | 00000 |
1/2 | 3/8 | PFA Plastic | White | 100 psi @ 72° F | 000000000 | 00000 |
3/4 | 1/2 | PFA Plastic | White | 70 psi @ 72° F | 000000000 | 00000 |
Non-Hardening Thread Sealant (8-oz. Brush-Top Can) | 000000 | Each | 000000 |

Pipe Size (A) | Pipe Size (B) | Material | Color | Max. Pressure | Each | |
NPT Threads | ||||||
---|---|---|---|---|---|---|
1/8 | 1/4 | PFA Plastic | White | 120 psi @ 72° F | 000000000 | 000000 |
1/4 | 3/8 | PFA Plastic | White | 120 psi @ 72° F | 000000000 | 00000 |
1/4 | 1/2 | PFA Plastic | White | 100 psi @ 72° F | 000000000 | 00000 |
3/8 | 1/2 | PFA Plastic | White | 100 psi @ 72° F | 000000000 | 00000 |
1/2 | 3/4 | PFA Plastic | White | 70 psi @ 72° F | 000000000 | 000000 |
Non-Hardening Thread Sealant (8-oz. Brush-Top Can) | 000000 | Each | 000000 |

Pipe Size | Material | Color | Max. Pressure | Each | |
NPT Threads | |||||
---|---|---|---|---|---|
1/8 | PFA Plastic | White | 120 psi @ 72° F | 000000000 | 000000 |
1/4 | PFA Plastic | White | 120 psi @ 72° F | 000000000 | 00000 |
3/8 | PFA Plastic | White | 120 psi @ 72° F | 000000000 | 000000 |
1/2 | PFA Plastic | White | 100 psi @ 72° F | 000000000 | 000000 |
3/4 | PFA Plastic | White | 70 psi @ 72° F | 000000000 | 000000 |
Non-Hardening Thread Sealant (8-oz. Brush-Top Can) | 000000 | Each | 000000 |

Pipe Size | Material | Color | Max. Pressure | Each | |
NPT Threads | |||||
---|---|---|---|---|---|
1/8 | PFA Plastic | White | 120 psi @ 72° F | 000000000 | 000000 |
1/4 | PFA Plastic | White | 120 psi @ 72° F | 000000000 | 00000 |
3/8 | PFA Plastic | White | 120 psi @ 72° F | 000000000 | 00000 |
1/2 | PFA Plastic | White | 100 psi @ 72° F | 000000000 | 000000 |
3/4 | PFA Plastic | White | 70 psi @ 72° F | 000000000 | 000000 |
Non-Hardening Thread Sealant (8-oz. Brush-Top Can) | 000000 | Each | 000000 |

Pipe Size | Material | Color | Max. Pressure | Each | |
NPT Threads | |||||
---|---|---|---|---|---|
1/8 | PFA Plastic | White | 120 psi @ 72° F | 000000000 | 000000 |
1/4 | PFA Plastic | White | 120 psi @ 72° F | 000000000 | 00000 |
3/8 | PFA Plastic | White | 120 psi @ 72° F | 000000000 | 000000 |
1/2 | PFA Plastic | White | 100 psi @ 72° F | 000000000 | 000000 |
3/4 | PFA Plastic | White | 70 psi @ 72° F | 000000000 | 000000 |
Non-Hardening Thread Sealant (8-oz. Brush-Top Can) | 000000 | Each | 000000 |

Pipe Size | Drive Size | Material | Color | Max. Pressure | Each | |
NPT Threads | ||||||
---|---|---|---|---|---|---|
1/8 | 1/2" | PFA Plastic | White | 120 psi @ 72° F | 000000000 | 000000 |
1/4 | 5/8" | PFA Plastic | White | 120 psi @ 72° F | 000000000 | 00000 |
3/8 | 13/16" | PFA Plastic | White | 120 psi @ 72° F | 000000000 | 00000 |
1/2 | 15/16" | PFA Plastic | White | 100 psi @ 72° F | 000000000 | 00000 |
3/4 | 1 3/16" | PFA Plastic | White | 70 psi @ 72° F | 000000000 | 00000 |
Non-Hardening Thread Sealant (8-oz. Brush-Top Can) | 000000 | Each | 000000 |
Multiline Quick-Disconnect Tube Couplings for Air

Don’t get your lines crossed—use one of these couplings to quickly connect or disconnect multiple tubes at once. They keep tubes organized and optimize space in tight spots. Often used in robotics, these couplings are ideal for complex pneumatic systems.
Through-wall couplings allow you to connect and disconnect air lines on a panel or machine. This is useful when you are going to transport and reconnect your equipment on site.
Push-to-connect fittings are for firm and hard tubing. Also known as instant fittings. To connect to tubing, insert the tube into the fitting—an internal gripping ring and O-ring hold the fitting in place. To disconnect, push on the release ring and pull the tubing out of the fitting.
For a complete coupling, order a plug and a socket with the same coupling size.
For technical drawings and 3-D models, click on a part number.


- Maximum Pressure: 145 psi @ 72° F
- Temperature Range: 25° to 140° F
- Tubing: Use with firm or hard (Durometer 50D-70D, Durometer 91A-97A) FEP plastic, nylon plastic, PFA plastic, or polyurethane rubber
To connect the coupling, tighten the included clamp bolts using a L-key (not included). Loosen the clamp bolts to disconnect. Made of brass, these couplings are more durable than plastic couplings and have good corrosion resistance.
Mated | |||||||||
---|---|---|---|---|---|---|---|---|---|
For Tube OD, mm | No. of Connections | Material | Color | Max. Vacuum | Lg. | Wd. | Ht. | Each | |
4 | 10 | Nickel-Plated Brass | Gray | 29 in. of Hg @ 72° F | 4 31/64" | 1 57/64" | 1 55/64" | 0000000 | 000000 |
4 | 20 | Nickel-Plated Brass | Gray | 29 in. of Hg @ 72° F | 7 53/64" | 1 57/64" | 1 55/64" | 0000000 | 00000 |
6 | 10 | Nickel-Plated Brass | Gray | 29 in. of Hg @ 72° F | 4 31/64" | 1 57/64" | 1 55/64" | 0000000 | 00000 |
6 | 20 | Nickel-Plated Brass | Gray | 29 in. of Hg @ 72° F | 7 53/64" | 1 57/64" | 1 55/64" | 0000000 | 00000 |
Mated | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
For Tube OD, mm | No. of Connections | Material | Color | Max. Vacuum | Lg. | Wd. | Ht. | For Hole Wd. | For Hole Ht. | For Max. Wall Thick. | Each | |
4 | 10 | Nickel-Plated Brass | Gray | 29 in. of Hg @ 72° F | 4 31/64" | 1 57/64" | 1 55/64" | 4 19/64" | 1 25/32" | 3/16" | 0000000 | 000000 |
4 | 20 | Nickel-Plated Brass | Gray | 29 in. of Hg @ 72° F | 7 53/64" | 1 57/64" | 1 55/64" | 7 5/8" | 1 25/32" | 3/16" | 0000000 | 00000 |
6 | 10 | Nickel-Plated Brass | Gray | 29 in. of Hg @ 72° F | 4 31/64" | 1 57/64" | 1 55/64" | 4 19/64" | 1 25/32" | 3/16" | 0000000 | 00000 |
6 | 20 | Nickel-Plated Brass | Gray | 29 in. of Hg @ 72° F | 7 53/64" | 1 57/64" | 1 55/64" | 7 5/8" | 1 25/32" | 3/16" | 0000000 | 00000 |
Compression Fittings for Plastic Tubing—Chemicals


- For Use With: PFA Plastic: Hydrochloric Acid, Sulfuric Acid
PTFE Plastic: Alcohol, Ammonia, Benzoic Acid, Bleach, Bromine, Coolant, Fluoboric Acid, Hydrochloric Acid, Hydrofluoric Acid, Nitric Acid, Organic Solvents, Sodium Carbonate, Sulfuric Acid - Temperature Range: PFA Plastic: 0° to 350° F
PTFE Plastic: -40° to 185° F - Tubing: PFA Plastic: Use with hard (Durometer 50D-65D) PFA or PTFE plastic
PTFE Plastic: Use with hard (Durometer 60D) PFA or PTFE plastic
A sleeve (ferrule) compresses the tubing as you tighten the nut, creating a strong seal. The nut and sleeve are included. Fittings are also known as flareless fittings. Fittings that include a gripper sleeve on the tubing create an even tighter seal.
PFA fittings stand up to harsh substances. They’re made through a melting process. PTFE fittings are highly resistant to most acids, alcohols, detergents, and solvents. They’re made by machining. Their nut is made of PVDF, which is resistant to halogens such as chlorine and bromine, strong acids such as hydrofluoric and nitric acids, and organic solvents.
For technical drawings and 3-D models, click on a part number.

For Tube OD | Pipe Size | Material | Color | Max. Pressure | Each | |
NPT Threads | ||||||
---|---|---|---|---|---|---|
1/8" | 1/8 | PFA Plastic | White | 120 psi @ 72° F | 00000000 | 000000 |
1/8" | 1/4 | PFA Plastic | White | 125 psi @ 72° F | 000000000 | 000000 |
1/4" | 1/8 | PFA Plastic | White | 120 psi @ 72° F | 00000000 | 00000 |
1/4" | 1/4 | PFA Plastic | White | 120 psi @ 72° F | 00000000 | 00000 |
1/4" | 3/8 | PFA Plastic | White | 120 psi @ 72° F | 00000000 | 00000 |
1/4" | 1/2 | PFA Plastic | White | 120 psi @ 72° F | 00000000 | 00000 |
1/4" | 3/4 | PFA Plastic | White | 125 psi @ 72° F | 000000000 | 000000 |
3/8" | 1/8 | PFA Plastic | White | 125 psi @ 72° F | 000000000 | 000000 |
3/8" | 1/4 | PFA Plastic | White | 120 psi @ 72° F | 00000000 | 00000 |
3/8" | 3/8 | PFA Plastic | White | 120 psi @ 72° F | 00000000 | 00000 |
3/8" | 1/2 | PFA Plastic | White | 120 psi @ 72° F | 00000000 | 00000 |
1/2" | 1/4 | PFA Plastic | White | 120 psi @ 72° F | 00000000 | 00000 |
1/2" | 3/8 | PFA Plastic | White | 120 psi @ 72° F | 00000000 | 00000 |
1/2" | 1/2 | PFA Plastic | White | 120 psi @ 72° F | 00000000 | 00000 |
1/2" | 3/4 | PFA Plastic | White | 125 psi @ 72° F | 000000000 | 000000 |
3/4" | 1/2 | PFA Plastic | White | 125 psi @ 72° F | 000000000 | 000000 |
3/4" | 3/4 | PFA Plastic | White | 120 psi @ 72° F | 00000000 | 000000 |
4mm | 1/8 | PTFE Plastic | White | 100 psi @ 72° F | 000000000 | 00000 |
6mm | 1/8 | PTFE Plastic | White | 100 psi @ 72° F | 000000000 | 00000 |
6mm | 1/4 | PTFE Plastic | White | 100 psi @ 72° F | 000000000 | 00000 |
8mm | 1/4 | PTFE Plastic | White | 100 psi @ 72° F | 000000000 | 00000 |
10mm | 1/4 | PTFE Plastic | White | 100 psi @ 72° F | 000000000 | 000000 |
10mm | 3/8 | PTFE Plastic | White | 100 psi @ 72° F | 000000000 | 00000 |
12mm | 3/8 | PTFE Plastic | White | 80 psi @ 72° F | 000000000 | 00000 |
12mm | 1/2 | PTFE Plastic | White | 80 psi @ 72° F | 000000000 | 00000 |

For Tube OD | Pipe Size | Material | Color | Max. Pressure | Each | |
NPT Threads | ||||||
---|---|---|---|---|---|---|
1/8" | 1/8 | PFA Plastic | White | 120 psi @ 72° F | 00000000 | 000000 |
1/8" | 1/4 | PFA Plastic | White | 125 psi @ 72° F | 000000000 | 000000 |
1/4" | 1/8 | PFA Plastic | White | 120 psi @ 72° F | 00000000 | 000000 |
1/4" | 1/4 | PFA Plastic | White | 120 psi @ 72° F | 00000000 | 000000 |
1/4" | 3/8 | PFA Plastic | White | 120 psi @ 72° F | 00000000 | 000000 |
1/4" | 1/2 | PFA Plastic | White | 120 psi @ 72° F | 00000000 | 000000 |
3/8" | 1/4 | PFA Plastic | White | 120 psi @ 72° F | 00000000 | 000000 |
3/8" | 3/8 | PFA Plastic | White | 120 psi @ 72° F | 00000000 | 000000 |
3/8" | 1/2 | PFA Plastic | White | 120 psi @ 72° F | 00000000 | 000000 |
1/2" | 1/4 | PFA Plastic | White | 120 psi @ 72° F | 00000000 | 000000 |
1/2" | 3/8 | PFA Plastic | White | 120 psi @ 72° F | 00000000 | 000000 |
1/2" | 1/2 | PFA Plastic | White | 120 psi @ 72° F | 00000000 | 000000 |
1/2" | 3/4 | PFA Plastic | White | 125 psi @ 72° F | 000000000 | 000000 |
3/4" | 3/4 | PFA Plastic | White | 120 psi @ 72° F | 00000000 | 000000 |
10mm | 3/8 | PTFE Plastic | White | 100 psi @ 72° F | 000000000 | 000000 |

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 | Pipe Size | Material | Color | Max. Pressure | For Hole Dia. | For Max. Wall Thick. | Each | |
NPT Threads | ||||||||
---|---|---|---|---|---|---|---|---|
1/4" | 1/4 | PFA Plastic | White | 120 psi @ 72° F | 1/2" | 1/4" | 000000000 | 0000000 |
3/8" | 3/8 | PFA Plastic | White | 120 psi @ 72° F | 5/8" | 1/4" | 000000000 | 000000 |
1/2" | 1/2 | PFA Plastic | White | 120 psi @ 72° F | 3/4" | 1/4" | 000000000 | 000000 |
3/4" | 3/4 | PFA Plastic | White | 120 psi @ 72° F | 1" | 1/2" | 000000000 | 000000 |

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 | Max. Pressure | For Hole Dia. | For Max. Wall Thick. | Each | |
1/8" | PFA Plastic | White | 125 psi @ 72° F | 5/16" | 1/4" | 000000000 | 0000000 |
1/4" | PFA Plastic | White | 125 psi @ 72° F | 1/2" | 1/4" | 000000000 | 000000 |
3/8" | PFA Plastic | White | 125 psi @ 72° F | 5/8" | 1/4" | 000000000 | 000000 |
1/2" | PFA Plastic | White | 125 psi @ 72° F | 3/4" | 1/4" | 000000000 | 000000 |
3/4" | PFA Plastic | White | 125 psi @ 72° F | 1" | 1/4" | 000000000 | 000000 |

For Tube OD (A) | For Tube OD (B) | Material | Color | Max. Pressure | Each | |
1/4" | 1/8" | PFA Plastic | White | 125 psi @ 72° F | 000000000 | 0000000 |
3/8" | 1/4" | PFA Plastic | White | 125 psi @ 72° F | 000000000 | 000000 |
1/2" | 1/8" | PFA Plastic | White | 125 psi @ 72° F | 000000000 | 000000 |
1/2" | 1/4" | PFA Plastic | White | 125 psi @ 72° F | 000000000 | 000000 |
1/2" | 3/8" | PFA Plastic | White | 125 psi @ 72° F | 000000000 | 000000 |
3/4" | 1/2" | PFA Plastic | White | 125 psi @ 72° F | 000000000 | 000000 |
6mm | 4mm | PTFE Plastic | White | 100 psi @ 72° F | 000000000 | 000000 |
10mm | 6mm | PTFE Plastic | White | 100 psi @ 72° F | 000000000 | 000000 |
10mm | 8mm | PTFE Plastic | White | 100 psi @ 72° F | 000000000 | 000000 |

For Tube OD | Pipe Size | Material | Color | Max. Pressure | Each | |
NPT Threads | ||||||
---|---|---|---|---|---|---|
1/8" | 1/8 | PFA Plastic | White | 120 psi @ 72° F | 00000000 | 000000 |
1/8" | 1/4 | PFA Plastic | White | 125 psi @ 72° F | 000000000 | 000000 |
1/4" | 1/8 | PFA Plastic | White | 120 psi @ 72° F | 00000000 | 00000 |
1/4" | 1/4 | PFA Plastic | White | 120 psi @ 72° F | 00000000 | 00000 |
1/4" | 3/8 | PFA Plastic | White | 120 psi @ 72° F | 000000000 | 00000 |
1/4" | 1/2 | PFA Plastic | White | 120 psi @ 72° F | 000000000 | 00000 |
3/8" | 1/4 | PFA Plastic | White | 120 psi @ 72° F | 00000000 | 00000 |
3/8" | 3/8 | PFA Plastic | White | 120 psi @ 72° F | 00000000 | 00000 |
3/8" | 1/2 | PFA Plastic | White | 120 psi @ 72° F | 00000000 | 00000 |
1/2" | 1/4 | PFA Plastic | White | 120 psi @ 72° F | 00000000 | 00000 |
1/2" | 3/8 | PFA Plastic | White | 120 psi @ 72° F | 00000000 | 00000 |
1/2" | 1/2 | PFA Plastic | White | 120 psi @ 72° F | 00000000 | 00000 |
3/4" | 1/2 | PFA Plastic | White | 125 psi @ 72° F | 000000000 | 000000 |
3/4" | 3/4 | PFA Plastic | White | 120 psi @ 72° F | 000000000 | 000000 |
6mm | 1/8 | PTFE Plastic | White | 100 psi @ 72° F | 000000000 | 00000 |
6mm | 1/4 | PTFE Plastic | White | 100 psi @ 72° F | 000000000 | 00000 |
10mm | 3/8 | PTFE Plastic | White | 100 psi @ 72° F | 000000000 | 000000 |

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 | Max. Pressure | For Hole Dia. | For Max. Wall Thick. | Each | |
1/4" | PFA Plastic | White | 125 psi @ 72° F | 1/2" | 1/4" | 000000000 | 0000000 |

Inline tees are also known as branch tees.
For Tube OD | Pipe Size | Material | Color | Max. Pressure | Each | |
NPT Threads | ||||||
---|---|---|---|---|---|---|
1/8" | 1/8 | PFA Plastic | White | 120 psi @ 72° F | 00000000 | 0000000 |
1/8" | 1/4 | PFA Plastic | White | 125 psi @ 72° F | 000000000 | 000000 |
1/4" | 1/8 | PFA Plastic | White | 120 psi @ 72° F | 00000000 | 000000 |
1/4" | 1/4 | PFA Plastic | White | 120 psi @ 72° F | 00000000 | 000000 |
3/8" | 1/4 | PFA Plastic | White | 120 psi @ 72° F | 000000000 | 000000 |
3/8" | 3/8 | PFA Plastic | White | 120 psi @ 72° F | 00000000 | 000000 |
3/8" | 1/2 | PFA Plastic | White | 120 psi @ 72° F | 000000000 | 000000 |
1/2" | 1/4 | PFA Plastic | White | 120 psi @ 72° F | 000000000 | 000000 |
1/2" | 1/2 | PFA Plastic | White | 120 psi @ 72° F | 000000000 | 000000 |
3/4" | 3/4 | PFA Plastic | White | 120 psi @ 72° F | 00000000 | 000000 |