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 Air Preparation
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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.
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.
Manifolds for Supplied-Air Respirators for Plant Air Lines

Divert compressed air from a single line to two respirators. Often used in plants with limited air sources, these manifolds allow two workers to share the same line. Shaped like a briefcase, they’re easy to tote around your facility—use them up to 300 ft. from an air source. The case is polypropylene, so it’s durable enough to hold up to wear and tear.
Overall | Pressure Regulating Max., psi | |||||||||||
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Inlet Coupling Size | Outlet Coupling Size (No. of Outlets) | Max. Flow Rate, cfm | Max. Pressure, psi | Gauge Included | Wd. | Ht. | Max. Temp., °F | Regulating Accuracy, psi | Inlet | Outlet | Each | |
Aluminum Housing | ||||||||||||
Quick-Disconnect Male Inlet and Female Outlets | ||||||||||||
1/2 | 1/4 (2 Regulated) | 100 | 125 | Yes | 19" | 13" | 140° | ±0.1 | 150 | 125 | 0000000 | 0000000 |