Compression Tube Fittings for PTFE Tubing

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162 Products

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.

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.

Straight Adapters, Tube × Male Threaded Pipe

NPT Threads
For Tube OD	Pipe Size	Material	Color	Max. Pressure		Each
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	00000
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

Straight Adapters, Tube × Female Threaded Pipe

NPT Threads
For Tube OD	Pipe Size	Material	Color	Max. Pressure		Each
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	00000
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	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 Straight Adapters, Tube × Male Threaded Pipe

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.

NPT Threads
For Tube OD	Pipe Size	Material	Color	Max. Pressure	For Hole Dia.	For Max. Wall Thick.		Each
1/4"	1/4	PFA Plastic	White	120 psi @ 72° F	1/2"	1/4"	000000000	000000
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

Straight Connectors, Tube

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

Through-Wall Straight Connectors, Tube

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
4mm	PTFE Plastic	White	100 psi @ 72° F	25/64"	1/4"	000000000	000000
6mm	PTFE Plastic	White	100 psi @ 72° F	29/64"	1/4"	000000000	000000
12mm	PTFE Plastic	White	80 psi @ 72° F	57/64"	1/4"	000000000	000000

Straight Reducers, Tube

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

90° Elbow Adapters, Tube × Male Threaded Pipe

NPT Threads
For Tube OD	Pipe Size	Material	Color	Max. Pressure		Each
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	00000
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

90° Elbow Adapters, Tube × Female Threaded Pipe

NPT Threads
For Tube OD	Pipe Size	Material	Color	Max. Pressure		Each
1/8"	1/8	PFA Plastic	White	125 psi @ 72° F	000000000	0000000
1/4"	1/4	PFA Plastic	White	125 psi @ 72° F	000000000	000000
3/8"	3/8	PFA Plastic	White	125 psi @ 72° F	000000000	000000
1/2"	1/2	PFA Plastic	White	125 psi @ 72° F	000000000	000000

90° Elbow Connectors, Tube

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

Through-Wall 90° Elbow Connectors, Tube

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

90° Elbow Reducers, Tube

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

Inline Tee Adapters, Tube × Male Threaded Pipe

Inline tees are also known as branch tees.

NPT Threads
For Tube OD	Pipe Size	Material	Color	Max. Pressure		Each
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	00000
1/4"	1/4	PFA Plastic	White	120 psi @ 72° F	00000000	00000
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

Tee Connectors, Tube

For Tube OD	Material	Color	Max. Pressure		Each
1/8"	PFA Plastic	White	120 psi @ 72° F	00000000	000000
1/4"	PFA Plastic	White	120 psi @ 72° F	00000000	000000
3/8"	PFA Plastic	White	120 psi @ 72° F	00000000	000000
1/2"	PFA Plastic	White	120 psi @ 72° F	00000000	000000
3/4"	PFA Plastic	White	120 psi @ 72° F	00000000	000000
4mm	PTFE Plastic	White	100 psi @ 72° F	000000000	000000
6mm	PTFE Plastic	White	100 psi @ 72° F	000000000	000000
8mm	PTFE Plastic	White	100 psi @ 72° F	000000000	000000

Inline Tee Reducers, Tube

Inline tees are also known as branch tees.

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

Replacement Nuts

For Tube OD	OD	Length		Each
1/8"	9/16"	9/16"	000000000	000000
1/4"	27/32"	31/32"	000000000	00000
3/8"	15/16"	63/64"	000000000	00000
1/2"	1 3/32"	1 1/8"	000000000	00000
3/4"	1 13/32"	1 15/64"	000000000	00000

Replacement Nut Assemblies

For Tube OD	Includes		Each
1/8"	Gripper Sleeve, Nut, Sleeve	000000000	000000
1/4"	Gripper Sleeve, Nut, Sleeve	000000000	00000
3/8"	Gripper Sleeve, Nut, Sleeve	000000000	00000
1/2"	Gripper Sleeve, Nut, Sleeve	000000000	00000
3/4"	Gripper Sleeve, Nut, Sleeve	000000000	00000

Replacement Sleeves

For Tube OD		Each
1/8"	000000000	000000
1/4"	000000000	00000
3/8"	000000000	00000
1/2"	000000000	00000
3/4"	000000000	00000

Replacement Grippers

For Tube OD		Each
1/8"	000000000	00000
1/4"	000000000	00000
3/8"	000000000	00000
1/2"	000000000	00000
3/4"	000000000	00000

Plastic Compression Tube Fittings for Air

For Use With: Air, Lubricated Air
Temperature Range: -30° to 210° F
Tubing: Use with firm or hard nylon plastic, polyethylene plastic or polypropylene plastic

Lighter in weight than their metal counterparts, these compression fittings are polypropylene. They have excellent impact and abrasion resistance. Fittings include a nut with a built-in sleeve (ferrule), so there’s no need to remove the nut for assembly. The sleeve compresses the tubing as you tighten the nut, creating a strong seal. Fittings are also known as flareless fittings.

Tube supports (sold separately) are recommended if you want to use the fittings with soft nylon, polypropylene, and polyethylene tubing to prevent the tube from collapsing.

For technical drawings and 3-D models, click on a part number.

Straight Reducers, Tube

For Tube OD (A)	For Tube OD (B)	Material	Color	Max. Pressure	Pkg. Qty.		Pkg.
5/16"	1/4"	Polypropylene Plastic	White	220 psi @ 72° F	5	00000000	00000
3/8"	1/4"	Polypropylene Plastic	White	220 psi @ 72° F	5	00000000	0000
1/2"	3/8"	Polypropylene Plastic	White	220 psi @ 72° F	2	00000000	0000
5/8"	3/8"	Polypropylene Plastic	White	220 psi @ 72° F	2	00000000	0000
5/8"	1/2"	Polypropylene Plastic	White	220 psi @ 72° F	2	00000000	0000
7/8"	5/8"	Polypropylene Plastic	White	220 psi @ 72° F	1	00000000	0000

Nuts with Built-In Sleeve

	Nut		Sleeve
For Tube OD	Material	Color	Material	Color	Max. Pressure	Pkg. Qty.		Pkg.
1/4"	Polypropylene Plastic	White	Polypropylene Plastic	White	220 psi @ 72° F	10	00000000	00000
5/16"	Polypropylene Plastic	White	Polypropylene Plastic	White	220 psi @ 72° F	10	00000000	0000
3/8"	Polypropylene Plastic	White	Polypropylene Plastic	White	220 psi @ 72° F	10	00000000	0000
1/2"	Polypropylene Plastic	White	Polypropylene Plastic	White	220 psi @ 72° F	10	00000000	0000
5/8"	Polypropylene Plastic	White	Polypropylene Plastic	White	220 psi @ 72° F	10	00000000	0000

Tube Supports

For Tube		Tube Support
OD	ID	Material	Color	Max. Pressure	Pkg. Qty.		Pkg.
1/4"	3/16"	Polypropylene Plastic	White	220 psi @ 72° F	10	00000000	00000
5/16"	3/16"	Polypropylene Plastic	White	220 psi @ 72° F	10	00000000	0000
3/8"	1/4"	Polypropylene Plastic	White	220 psi @ 72° F	10	00000000	0000
1/2"	3/8"	Polypropylene Plastic	White	220 psi @ 72° F	10	00000000	0000

Plastic Compression Tube Fittings for Water

Temperature Range: -40° to 200° F
Tubing: Use with firm or hard (Durometer 1A-90A or Durometer OD-75D) nylon plastic or polypropylene plastic

Made of acetal, these compression fittings are lighter in weight than metal compression fittings and won’t absorb moisture when used in wet environments. Fittings include a nut with a built-in sleeve (ferrule), so there’s no need to remove the nut for assembly. The sleeve compresses the tubing as you tighten the nut, creating a strong seal. Fittings are also known as flareless fittings.

Tube supports (sold separately) are recommended if you want to use the fittings with soft nylon and polypropylene tubing to prevent the tube from collapsing.

For technical drawings and 3-D models, click on a part number.

Straight Reducers, Tube

For Tube OD (A)	For Tube OD (B)	Material	Color	Max. Pressure		Each
5/16"	1/4"	Acetal Plastic	White	220 psi @ 72° F	00000000	00000
3/8"	1/4"	Acetal Plastic	White	220 psi @ 72° F	00000000	0000
1/2"	3/8"	Acetal Plastic	White	220 psi @ 72° F	00000000	0000
5/8"	3/8"	Acetal Plastic	White	220 psi @ 72° F	00000000	0000
5/8"	1/2"	Acetal Plastic	White	220 psi @ 72° F	00000000	0000
7/8"	5/8"	Acetal Plastic	White	220 psi @ 72° F	00000000	0000

90° Elbow Reducers, Tube

For Tube OD (A)	For Tube OD (B)	Material	Color	Max. Pressure		Each
7/8"	5/8"	Acetal Plastic	White	220 psi @ 72° F	00000000	00000

Tee Connectors, Tube

For Tube OD	Material	Color	Max. Pressure		Each
1/8"	Acetal Plastic	White	50 psi @ 72° F	00000000	00000
7/8"	Acetal Plastic	White	220 psi @ 72° F	00000000	0000

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How to Identify and Measure Fittings

Compression Fittings for Plastic Tubing—Chemicals

Plastic Compression Tube Fittings for Air

Plastic Compression Tube Fittings for Water