Polypropylene Tube Fitting Plugs

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82 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: Polycarbonate Plastic: Air
Nylon Plastic: Air, Water
Polypropylene Plastic: Water
Temperature Range: Nylon Plastic, Polycarbonate Plastic: -20° to 200° F
Polypropylene Plastic: 35° to 150° F
Tubing: Use with soft (Durometer 40A-65A) PVC plastic or silicone rubber

Made of plastic, these couplings are lighter in weight than metal quick-turn couplings. Also known as luer lock couplings, they consist of a plug and socket (sold separately) that connect with a half turn. They have a compact body for easy installation in tight spaces. Plugs and sockets are open-flow style, so there is no shut-off valve to stop the flow when the coupling is separated. They have a universal connection, so the plugs will connect to any of the sockets, regardless of the pipe or tube size.

Polypropylene plugs and sockets are moisture resistant and won’t absorb water and lose strength, even in high-humidity environments.

Note: For a complete coupling, order a plug and a socket.

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

Straight Plugs, Barbed Tube

Barbed plugs and sockets insert into tubing and secure with a clamp.

For Tube ID	Material	Color	Clarity	Max. Pressure	Pkg. Qty.		Pkg.
1/16"	Polypropylene Plastic	White	Semi-Clear	40 psi @ 72° F	10	000000000	00000
3/32"	Polypropylene Plastic	White	Semi-Clear	40 psi @ 72° F	10	000000000	0000
1/8"	Polypropylene Plastic	White	Semi-Clear	40 psi @ 72° F	10	000000000	0000
5/32"	Polypropylene Plastic	White	Semi-Clear	40 psi @ 72° F	10	000000000	0000
3/16"	Polypropylene Plastic	White	Semi-Clear	40 psi @ 72° F	10	000000000	0000
1/4"	Polypropylene Plastic	White	Semi-Clear	40 psi @ 72° F	10	000000000	0000

Straight Plugs, Male Threaded Pipe

NPT Threads
Pipe Size	Thread Size	Material	Color	Clarity	Max. Pressure	Pkg. Qty.		Pkg.
1/8	__	Polypropylene Plastic	White	Semi-Clear	40 psi @ 72° F	10	000000000	000000
1/4	__	Polypropylene Plastic	White	Semi-Clear	40 psi @ 72° F	10	000000000	00000
UN/UNF (SAE Straight) Threads
__	1/4"-28	Polypropylene Plastic	White	Semi-Clear	40 psi @ 72° F	10	000000000	0000
UN/UNF Taper Threads
__	10-32	Polypropylene Plastic	White	Semi-Clear	40 psi @ 72° F	10	000000000	0000

Straight Plug-to-Socket Adapters, Quick-Turn Tube

Material	Color	Clarity	Max. Pressure	Pkg. Qty.		Pkg.
Polypropylene Plastic	White	Semi-Clear	40 psi @ 72° F	10	000000000	00000

Caps for Plugs

Material	Color	Clarity	Max. Pressure	Pkg. Qty.		Pkg.
Polypropylene Plastic	White	Semi-Clear	40 psi @ 72° F	10	000000000	00000

End Plugs

Material	Color	Clarity	Max. Pressure	Pkg. Qty.		Pkg.
Polypropylene Plastic	White	Semi-Clear	40 psi @ 72° F	10	000000000	00000

Plastic Quick-Disconnect Tube Couplings for Air and Water

Lighter in weight than their metal counterparts, these quick-disconnect couplings are plastic. They consist of a plug and a socket that allow you to frequently connect and disconnect your line.

Polypropylene plugs and sockets are moisture resistant and have excellent impact resistance.

Plug and Sockets with shut-off have a valve to stop the flow when the coupling is separated, so air or water won’t spill from your line.

Note: 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.

Plugs, Barbed Hose

Temperature Range: 32° to 160° F

Barbed plugs and sockets insert into tubing.

						Open Flow		With Shut-Off
Coupling Size	Plug OD	For Hose ID	Material	Color	Max. Pressure		Each		Each
3/8	3/4"	5/8"	Polypropylene Plastic	Gray	60 psi @ 72° F	00000000	00000	00000000	000000
3/8	3/4"	3/4"	Polypropylene Plastic	Gray	60 psi @ 72° F	00000000	0000	0000000	00000

Plugs, Male Threaded Pipe

Temperature Range: -40° to 180° F; Polypropylene Plastic Fittings are 32° to 160° F

Open Flow
Coupling Size	Plug OD	Pipe Size	Material	Color	Max. Pressure		Each
NPT Threads
3/8	3/4"	3/4	Polypropylene Plastic	Gray	60 psi @ 72° F	00000000	000000
BSPT Threads
3/8	3/4"	3/8	Polypropylene Plastic	Gray	60 psi @ 72° F	00000000	00000
With Shut-Off
NPT Threads
3/8	3/4"	3/4	Polypropylene Plastic	Gray	60 psi @ 72° F	00000000	00000
BSPT Threads
3/8	3/4"	3/8	Polypropylene Plastic	Gray	60 psi @ 72° F	00000000	00000

Push-to-Connect Fittings for Food and Beverage

Temperature Range: 35° to 140° F
Tubing: See table
Specifications Met: See table

Also known as instant fittings, these connect to tubing with a push, and an internal gripping ring and O-ring hold the tubing tight. To disconnect fittings with a release ring, push on the release ring and pull the tubing out of the fitting.

Polypropylene fittings have excellent impact and abrasion resistance. They meet NSF/ANSI standards for safe use with food. Some are also FDA compliant for indirect contact with food.

Black fittings have excellent UV resistance and are suitable for outdoor environments.

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

Caps

White
For Tube OD	Material	Release Ring Color	Max. Pressure	For Tube Hardness Rating	For Tube Hardness	Specifications Met		Each
1/4"	Polypropylene Plastic	White	150 psi @ 72° F	Firm, Hard	Durometer 50D-90D	NSF/ANSI 51, NSF/ANSI 61	00000000	00000
3/8"	Polypropylene Plastic	White	150 psi @ 72° F	Hard	Durometer 50D-70D	NSF/ANSI 58, NSF/ANSI 372, FDA Compliant 21 CFR 176.170	00000000	0000
1/2"	Polypropylene Plastic	White	150 psi @ 72° F	Hard	Durometer 50D-70D	NSF/ANSI 58, NSF/ANSI 372, FDA Compliant 21 CFR 176.170	00000000	0000
Black
1/4"	Polypropylene Plastic	Black	150 psi @ 72° F	Hard	Durometer 50D-70D	NSF/ANSI 58, NSF/ANSI 372, FDA Compliant 21 CFR 176.170	00000000	0000
3/8"	Polypropylene Plastic	Black	150 psi @ 72° F	Hard	Durometer 50D-70D	NSF/ANSI 58, NSF/ANSI 372, FDA Compliant 21 CFR 176.170	00000000	0000
1/2"	Polypropylene Plastic	Black	150 psi @ 72° F	Hard	Durometer 50D-70D	NSF/ANSI 58, NSF/ANSI 372, FDA Compliant 21 CFR 176.170	00000000	0000

Plugs

Plugs insert into the push-to-connect end of another fitting.

White
Tube Stem OD	Material	Max. Pressure	Specifications Met		Each
1/4"	Polypropylene Plastic	150 psi @ 72° F	NSF/ANSI 51, NSF/ANSI 61	0000000	00000
5/16"	Polypropylene Plastic	150 psi @ 72° F	NSF/ANSI 51, NSF/ANSI 61	00000000	0000
3/8"	Polypropylene Plastic	150 psi @ 72° F	NSF/ANSI 51, NSF/ANSI 61	0000000	0000
1/2"	Polypropylene Plastic	150 psi @ 72° F	NSF/ANSI 51, NSF/ANSI 61	0000000	0000
Black
1/4"	Polypropylene Plastic	150 psi @ 72° F	NSF/ANSI 58, NSF/ANSI 372, FDA Compliant 21 CFR 176.170	0000000	000
5/16"	Polypropylene Plastic	150 psi @ 72° F	NSF/ANSI 58, NSF/ANSI 372, FDA Compliant 21 CFR 176.170	00000000	0000
3/8"	Polypropylene Plastic	150 psi @ 72° F	NSF/ANSI 58, NSF/ANSI 372, FDA Compliant 21 CFR 176.170	0000000	0000
1/2"	Polypropylene Plastic	150 psi @ 72° F	NSF/ANSI 58, NSF/ANSI 372, FDA Compliant 21 CFR 176.170	0000000	0000

Quick-Disconnect Tube Couplings for Food and Beverage

Temperature Range:
Acetal Plastic: -40° to 180° F
Polypropylene Plastic: 32° to 160° F
Tubing:
Barbed Fittings: Use with soft or firm (Durometer 65A-80A) polyurethane rubber
Compression Fittings: Use with hard or firm (Durometer 80A-60D) nylon or polyethylene plastic
Specifications Met: NSF/ANSI 169

Couplings consist of a plug and a socket (sold separately) that join with a latch, so you can frequently connect and disconnect your line. To connect, insert the plug into the socket; to disconnect, press the latch on the socket and remove the plug. They’re made of FDA-approved materials, including moisture-resistant plastic that won’t absorb liquid and lose strength, even in high-humidity food and beverage applications.

Plugs and sockets with shut-off have a valve to stop the flow when the coupling is separated, so fluid won’t spill from your line.

Note: 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.

Straight Plugs, Barbed Tube

Barbed plugs insert into tubing and secure with a clamp.

Open Flow
Coupling Size	Plug OD	For Tube ID	Material	Color	Clarity	Max. Pressure		Each
3/8	3/4"	3/8"	Polypropylene Plastic	Gray	Opaque	60 psi @ 72° F	0000000	000000
3/8	3/4"	1/2"	Polypropylene Plastic	Gray	Opaque	60 psi @ 72° F	0000000	00000
With Shut-Off
3/8	3/4"	3/8"	Polypropylene Plastic	Gray	Opaque	60 psi @ 72° F	0000000	00000
3/8	3/4"	1/2"	Polypropylene Plastic	Gray	Opaque	60 psi @ 72° F	0000000	00000

Straight Plugs, Male Threaded Pipe

Open Flow
Coupling Size	Plug OD	Pipe Size	Material	Color	Clarity	Max. Pressure		Each
NPT Threads
3/8	3/4"	3/8	Polypropylene Plastic	Gray	Opaque	60 psi @ 72° F	0000000	000000
3/8	3/4"	1/2	Polypropylene Plastic	Gray	Opaque	60 psi @ 72° F	0000000	00000
With Shut-Off
NPT Threads
3/8	3/4"	3/8	Polypropylene Plastic	Gray	Opaque	60 psi @ 72° F	0000000	00000
3/8	3/4"	1/2	Polypropylene Plastic	Gray	Opaque	60 psi @ 72° F	0000000	00000

Quick-Disconnect Couplings for Plastic and Rubber Tubing—Chemicals

For Use With: Ammonia, Ethanol, Phosphoric Acid (70%), Sodium Carbonate
Temperature Range: 32° to 160° F

Couplings consist of a plug and a socket (sold separately) that join with a latch, so you can frequently connect and disconnect your line. To connect, insert the plug into the socket; to disconnect, press the latch on the socket and remove the plug. Plugs and sockets are polypropylene, which has excellent chemical, impact, and abrasion resistance.

Plugs and sockets with shut-off have a valve to stop the flow when the coupling is separated so fluid won’t spill from your line.

Note: 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.

Straight Plugs, Barbed Tube

Barbed plugs insert into tubing and secure with a clamp.

						Open Flow		With Shut-Off
Coupling Size	Plug OD	For Tube ID	Material	Color	Max. Pressure		Each		Each
1/8	5/16"	1/8"	Polypropylene Plastic	Beige	120 psi @ 72° F	00000000	00000	00000000	000000
1/8	5/16"	1/4"	Polypropylene Plastic	Beige	120 psi @ 72° F	00000000	0000	00000000	00000
1/4	7/16"	1/4"	Polypropylene Plastic	Beige	120 psi @ 72° F	00000000	0000	00000000	00000
1/4	7/16"	3/8"	Polypropylene Plastic	Beige	120 psi @ 72° F	00000000	0000	00000000	00000
3/8	3/4"	3/8"	Polypropylene Plastic	Gray	60 psi @ 72° F	00000000	00000	00000000	00000
3/8	3/4"	1/2"	Polypropylene Plastic	Gray	60 psi @ 72° F	00000000	00000	00000000	00000

Straight Plugs, Male Threaded Pipe

Open Flow
Coupling Size	Plug OD	Pipe Size	Material	Color	Max. Pressure		Each
NPT Threads
1/8	5/16"	1/8	Polypropylene Plastic	Beige	120 psi @ 72° F	00000000	00000
1/4	7/16"	1/4	Polypropylene Plastic	Beige	120 psi @ 72° F	00000000	00000
3/8	3/4"	3/8	Polypropylene Plastic	Gray	60 psi @ 72° F	00000000	00000
3/8	3/4"	1/2	Polypropylene Plastic	Gray	60 psi @ 72° F	00000000	00000
With Shut-Off
NPT Threads
1/8	5/16"	1/8	Polypropylene Plastic	Beige	120 psi @ 72° F	00000000	00000
1/4	7/16"	1/4	Polypropylene Plastic	Beige	120 psi @ 72° F	00000000	00000
3/8	3/4"	3/8	Polypropylene Plastic	Gray	60 psi @ 72° F	00000000	00000
3/8	3/4"	1/2	Polypropylene Plastic	Gray	60 psi @ 72° F	00000000	00000

90° Elbow Plugs, Barbed Tube

Barbed plugs insert into tubing and secure with a clamp.

						Open Flow		With Shut-Off
Coupling Size	Plug OD	For Tube ID	Material	Color	Max. Pressure		Each		Each
1/8	5/16"	1/8"	Polypropylene Plastic	Beige	120 psi @ 72° F	00000000	000000	00000000	000000
1/8	5/16"	1/4"	Polypropylene Plastic	Beige	120 psi @ 72° F	00000000	00000	00000000	00000
1/4	7/16"	1/4"	Polypropylene Plastic	Beige	120 psi @ 72° F	00000000	00000	00000000	00000
1/4	7/16"	3/8"	Polypropylene Plastic	Beige	120 psi @ 72° F	00000000	00000	00000000	00000
3/8	3/4"	3/8"	Polypropylene Plastic	Gray	60 psi @ 72° F	00000000	00000	00000000	00000
3/8	3/4"	1/2"	Polypropylene Plastic	Gray	60 psi @ 72° F	00000000	00000	00000000	00000

Push-to-Connect Fittings for Plastic Tubing—High-Purity

For Use With: Air, Nitrogen, Water
Temperature Range: 32° to 100° F
Tubing: Use with polypropylene plastic

Also known as instant fittings, these 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. Fittings are produced in a clean room and are double bagged to prevent dirt and moisture from contaminating the inside. They are polypropylene, which has excellent impact and abrasion resistance.

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

Plugs

Plugs insert into the push-to-connect end of another fitting.

Tube Stem OD	Material	Color	Max. Pressure		Each
1/4"	Polypropylene Plastic	White	100 psi @ 72° F	00000000	00000
3/8"	Polypropylene Plastic	White	100 psi @ 72° F	00000000	0000
1/2"	Polypropylene Plastic	White	100 psi @ 72° F	00000000	0000
4mm	Polypropylene Plastic	White	140 psi @ 72° F	00000000	0000
6mm	Polypropylene Plastic	White	140 psi @ 72° F	00000000	0000
8mm	Polypropylene Plastic	White	140 psi @ 72° F	00000000	0000
12mm	Polypropylene Plastic	White	140 psi @ 72° F	00000000	0000

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How to Identify and Measure Fittings

Plastic Quick-Turn Tube Couplings for Air and Water

Plastic Quick-Disconnect Tube Couplings for Air and Water

Push-to-Connect Fittings for Food and Beverage

Quick-Disconnect Tube Couplings for Food and Beverage

Quick-Disconnect Couplings for Plastic and Rubber Tubing—Chemicals

Push-to-Connect Fittings for Plastic Tubing—High-Purity