Weld-Spatter Tube Fittings

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115 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.

Temperature Range: 32° to 100° F
Tubing: Use with firm or hard (Durometer 90A-50D) nylon plastic or polyurethane rubber

Made of flame-resistant material, these fittings are good for welding and other applications where sparks occur. Also known as instant fittings, they 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. They have good corrosion resistance.

Fittings with PTFE thread sealant offer extra protection against leaks.

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

Straight Adapters, Tube × Male Threaded Pipe

			Release Ring
For Tube OD	Pipe Size	Material	Material	Color	Max. Pressure	Features		Each
NPT Threads
1/4"	1/8	Brass	Plastic	Green	140 psi @ 72° F	PTFE Thread Sealant	00000000	00000
1/4"	1/4	Brass	Plastic	Green	140 psi @ 72° F	PTFE Thread Sealant	00000000	0000
1/4"	3/8	Brass	Plastic	Green	140 psi @ 72° F	PTFE Thread Sealant	00000000	0000
3/8"	1/4	Brass	Plastic	Green	140 psi @ 72° F	PTFE Thread Sealant	0000000	0000
3/8"	3/8	Brass	Plastic	Green	140 psi @ 72° F	PTFE Thread Sealant	00000000	0000
3/8"	1/2	Brass	Plastic	Green	140 psi @ 72° F	PTFE Thread Sealant	0000000	0000
1/2"	1/4	Brass	Plastic	Green	140 psi @ 72° F	PTFE Thread Sealant	0000000	0000
1/2"	3/8	Brass	Plastic	Green	140 psi @ 72° F	PTFE Thread Sealant	0000000	0000
1/2"	1/2	Brass	Plastic	Green	140 psi @ 72° F	PTFE Thread Sealant	00000000	0000
BSPT Threads
6mm	1/8	Brass	Plastic	Green	140 psi @ 72° F	PTFE Thread Sealant	00000000	0000
6mm	1/4	Brass	Plastic	Green	140 psi @ 72° F	PTFE Thread Sealant	00000000	0000
6mm	3/8	Brass	Plastic	Green	140 psi @ 72° F	PTFE Thread Sealant	00000000	0000
8mm	1/8	Brass	Plastic	Green	140 psi @ 72° F	PTFE Thread Sealant	00000000	0000
8mm	1/4	Brass	Plastic	Green	140 psi @ 72° F	PTFE Thread Sealant	00000000	0000
8mm	3/8	Brass	Plastic	Green	140 psi @ 72° F	PTFE Thread Sealant	00000000	0000
10mm	1/4	Brass	Plastic	Green	140 psi @ 72° F	PTFE Thread Sealant	00000000	0000
10mm	3/8	Brass	Plastic	Green	140 psi @ 72° F	PTFE Thread Sealant	00000000	0000
10mm	1/2	Brass	Plastic	Green	140 psi @ 72° F	PTFE Thread Sealant	00000000	0000
12mm	1/4	Brass	Plastic	Green	140 psi @ 72° F	PTFE Thread Sealant	00000000	0000
12mm	3/8	Brass	Plastic	Green	140 psi @ 72° F	PTFE Thread Sealant	00000000	0000
12mm	1/2	Brass	Plastic	Green	140 psi @ 72° F	PTFE Thread Sealant	00000000	0000

Straight Adapters, Tube Stem × Tube

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
3/8"	1/4"	Polybutylene Plastic	Black	Green	140 psi @ 72° F	0000000	00000
1/2"	1/4"	Polybutylene Plastic	Black	Green	140 psi @ 72° F	0000000	0000
1/2"	3/8"	Polybutylene Plastic	Black	Green	140 psi @ 72° F	0000000	0000

Straight Connectors, Tube

For Tube OD, mm	Material	Color	Release Ring Color	Max. Pressure		Each
6	Polybutylene Plastic	Black	Green	140 psi @ 72° F	00000000	00000
8	Polybutylene Plastic	Black	Green	140 psi @ 72° F	00000000	0000
10	Polybutylene Plastic	Black	Green	140 psi @ 72° F	00000000	0000
12	Polybutylene Plastic	Black	Green	140 psi @ 72° F	00000000	0000

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.

		Release Ring
For Tube OD	Material	Material	Color	Max. Pressure	For Hole Dia.	For Max. Wall Thick.		Each
1/4"	Brass	Plastic	Green	140 psi @ 72° F	19/32"	7/16"	00000000	000000
3/8"	Brass	Plastic	Green	140 psi @ 72° F	29/32"	7/16"	00000000	00000
1/2"	Brass	Plastic	Green	140 psi @ 72° F	1 1/32"	7/16"	00000000	00000
6mm	Brass	Plastic	Green	140 psi @ 72° F	15mm	11mm	00000000	0000
8mm	Brass	Plastic	Green	140 psi @ 72° F	17mm	11mm	00000000	0000
10mm	Brass	Plastic	Green	140 psi @ 72° F	21mm	11mm	00000000	0000
12mm	Brass	Plastic	Green	140 psi @ 72° F	23mm	11mm	00000000	00000

45° Elbow Adapters, Tube × Male Threaded Pipe

BSPT Threads
For Tube OD, mm	Pipe Size	Tube Connection Material	Pipe Connection Material	Color	Release Ring Color	Max. Pressure	Features		Each
6	1/8	Polybutylene Plastic	Brass	Black	Green	140 psi @ 72° F	PTFE Thread Sealant	00000000	00000
8	1/4	Polybutylene Plastic	Brass	Black	Green	140 psi @ 72° F	PTFE Thread Sealant	00000000	0000
10	3/8	Polybutylene Plastic	Brass	Black	Green	140 psi @ 72° F	PTFE Thread Sealant	00000000	0000

90° Elbow Adapters, Tube × Male Threaded Pipe

NPT Threads
For Tube OD	Pipe Size	Tube Connection Material	Pipe Connection Material	Color	Release Ring Color	Max. Pressure	Features		Each
1/4"	1/8	Polybutylene Plastic	Brass	Black	Green	140 psi @ 72° F	PTFE Thread Sealant	00000000	00000
1/4"	1/4	Polybutylene Plastic	Brass	Black	Green	140 psi @ 72° F	PTFE Thread Sealant	00000000	0000
1/4"	3/8	Polybutylene Plastic	Brass	Black	Green	140 psi @ 72° F	PTFE Thread Sealant	00000000	0000
3/8"	1/4	Polybutylene Plastic	Brass	Black	Green	140 psi @ 72° F	PTFE Thread Sealant	0000000	0000
3/8"	3/8	Polybutylene Plastic	Brass	Black	Green	140 psi @ 72° F	PTFE Thread Sealant	00000000	0000
3/8"	1/2	Polybutylene Plastic	Brass	Black	Green	140 psi @ 72° F	PTFE Thread Sealant	0000000	0000
1/2"	1/4	Polybutylene Plastic	Brass	Black	Green	140 psi @ 72° F	PTFE Thread Sealant	0000000	0000
1/2"	3/8	Polybutylene Plastic	Brass	Black	Green	140 psi @ 72° F	PTFE Thread Sealant	0000000	0000
1/2"	1/2	Polybutylene Plastic	Brass	Black	Green	140 psi @ 72° F	PTFE Thread Sealant	00000000	0000
BSPT Threads
6mm	1/8	Polybutylene Plastic	Brass	Black	Green	140 psi @ 72° F	PTFE Thread Sealant	00000000	0000
6mm	1/4	Polybutylene Plastic	Brass	Black	Green	140 psi @ 72° F	PTFE Thread Sealant	00000000	0000
6mm	3/8	Polybutylene Plastic	Brass	Black	Green	140 psi @ 72° F	PTFE Thread Sealant	00000000	0000
8mm	1/8	Polybutylene Plastic	Brass	Black	Green	140 psi @ 72° F	PTFE Thread Sealant	00000000	0000
8mm	1/4	Polybutylene Plastic	Brass	Black	Green	140 psi @ 72° F	PTFE Thread Sealant	00000000	0000
8mm	3/8	Polybutylene Plastic	Brass	Black	Green	140 psi @ 72° F	PTFE Thread Sealant	00000000	0000
10mm	1/4	Polybutylene Plastic	Brass	Black	Green	140 psi @ 72° F	PTFE Thread Sealant	00000000	0000
10mm	3/8	Polybutylene Plastic	Brass	Black	Green	140 psi @ 72° F	PTFE Thread Sealant	00000000	0000
10mm	1/2	Polybutylene Plastic	Brass	Black	Green	140 psi @ 72° F	PTFE Thread Sealant	00000000	0000
12mm	1/4	Polybutylene Plastic	Brass	Black	Green	140 psi @ 72° F	PTFE Thread Sealant	00000000	0000
12mm	3/8	Polybutylene Plastic	Brass	Black	Green	140 psi @ 72° F	PTFE Thread Sealant	00000000	0000
12mm	1/2	Polybutylene Plastic	Brass	Black	Green	140 psi @ 72° F	PTFE Thread Sealant	00000000	0000

90° Elbow Adapters with External Hex Drive, Tube × Male Threaded Pipe

BSPT Threads
For Tube OD, mm	Pipe Size	Tube Connection Material	Pipe Connection Material	Color	Release Ring Color	Max. Pressure	Drive Size, mm	Features		Each
6	1/8	Polybutylene Plastic	Brass	Black	Green	140 psi @ 72° F	8	PTFE Thread Sealant	00000000	00000
6	1/4	Polybutylene Plastic	Brass	Black	Green	140 psi @ 72° F	10	PTFE Thread Sealant	00000000	0000
10	1/4	Polybutylene Plastic	Brass	Black	Green	140 psi @ 72° F	14	PTFE Thread Sealant	00000000	0000

90° Elbow Connectors, Tube

For Tube OD	Material	Color	Release Ring Color	Max. Pressure	Mount Type	Mounting Fasteners Included		Each
1/4"	Polybutylene Plastic	Black	Green	140 psi @ 72° F	Screw On	No	00000000	00000
3/8"	Polybutylene Plastic	Black	Green	140 psi @ 72° F	Screw On	No	00000000	0000
1/2"	Polybutylene Plastic	Black	Green	140 psi @ 72° F	Screw On	No	00000000	0000
6mm	Polybutylene Plastic	Black	Green	140 psi @ 72° F	Screw On	No	00000000	0000
8mm	Polybutylene Plastic	Black	Green	140 psi @ 72° F	Screw On	No	00000000	0000
10mm	Polybutylene Plastic	Black	Green	140 psi @ 72° F	Screw On	No	00000000	0000
12mm	Polybutylene Plastic	Black	Green	140 psi @ 72° F	Screw On	No	00000000	0000

Inline Tee Adapters, Tube × Male Threaded Pipe

Inline tees are also known as branch tees.

NPT Threads
For Tube OD	Pipe Size	Tube Connection Material	Pipe Connection Material	Color	Release Ring Color	Max. Pressure	Features		Each
1/4"	1/8	Polybutylene Plastic	Brass	Black	Green	140 psi @ 72° F	PTFE Thread Sealant	00000000	00000
1/4"	1/4	Polybutylene Plastic	Brass	Black	Green	140 psi @ 72° F	PTFE Thread Sealant	00000000	0000
1/4"	3/8	Polybutylene Plastic	Brass	Black	Green	140 psi @ 72° F	PTFE Thread Sealant	00000000	0000
3/8"	1/4	Polybutylene Plastic	Brass	Black	Green	140 psi @ 72° F	PTFE Thread Sealant	0000000	0000
3/8"	3/8	Polybutylene Plastic	Brass	Black	Green	140 psi @ 72° F	PTFE Thread Sealant	00000000	0000
1/2"	1/4	Polybutylene Plastic	Brass	Black	Green	140 psi @ 72° F	PTFE Thread Sealant	0000000	0000
1/2"	1/2	Polybutylene Plastic	Brass	Black	Green	140 psi @ 72° F	PTFE Thread Sealant	00000000	00000
BSPT Threads
6mm	1/8	Polybutylene Plastic	Brass	Black	Green	140 psi @ 72° F	PTFE Thread Sealant	00000000	0000
6mm	1/4	Polybutylene Plastic	Brass	Black	Green	140 psi @ 72° F	PTFE Thread Sealant	00000000	0000
6mm	3/8	Polybutylene Plastic	Brass	Black	Green	140 psi @ 72° F	PTFE Thread Sealant	00000000	0000
8mm	1/4	Polybutylene Plastic	Brass	Black	Green	140 psi @ 72° F	PTFE Thread Sealant	00000000	0000
8mm	3/8	Polybutylene Plastic	Brass	Black	Green	140 psi @ 72° F	PTFE Thread Sealant	00000000	0000

Right-Angle Tee Adapters, Tube × Male Threaded Pipe

Right-angle tees are also known as run tees.

NPT Threads
For Tube OD	Pipe Size	Material	Color	Release Ring Color	Max. Pressure	Features		Each
1/4"	1/8	Polybutylene Plastic	Black	Green	140 psi @ 72° F	PTFE Thread Sealant	00000000	00000
1/4"	1/4	Polybutylene Plastic	Black	Green	140 psi @ 72° F	PTFE Thread Sealant	00000000	0000
1/4"	3/8	Polybutylene Plastic	Black	Green	140 psi @ 72° F	PTFE Thread Sealant	00000000	0000
3/8"	3/8	Polybutylene Plastic	Black	Green	140 psi @ 72° F	PTFE Thread Sealant	00000000	0000
1/2"	1/2	Polybutylene Plastic	Black	Green	140 psi @ 72° F	PTFE Thread Sealant	00000000	00000

Tee Connectors, Tube

For Tube OD	Material	Color	Release Ring Color	Max. Pressure	Mount Type	Mounting Fasteners Included		Each
1/4"	Polybutylene Plastic	Black	Green	140 psi @ 72° F	Screw On	No	00000000	00000
3/8"	Polybutylene Plastic	Black	Green	140 psi @ 72° F	Screw On	No	00000000	0000
1/2"	Polybutylene Plastic	Black	Green	140 psi @ 72° F	Screw On	No	00000000	00000
6mm	Polybutylene Plastic	Black	Green	140 psi @ 72° F	Screw On	No	00000000	0000
8mm	Polybutylene Plastic	Black	Green	140 psi @ 72° F	Screw On	No	00000000	0000
10mm	Polybutylene Plastic	Black	Green	140 psi @ 72° F	Screw On	No	00000000	0000
12mm	Polybutylene Plastic	Black	Green	140 psi @ 72° F	Screw On	No	00000000	0000

Wye Adapters, Male Threaded Pipe × Tube

BSPT Threads
Pipe Size	For Tube OD, mm	Pipe Connection Material	Tube Connection Material	Color	Release Ring Color	Max. Pressure	Mount Type	Mounting Fasteners Included	Features		Each
1/8	6	Brass	Polybutylene Plastic	Black	Green	140 psi @ 72° F	Screw On	No	PTFE Thread Sealant	00000000	00000
1/4	6	Brass	Polybutylene Plastic	Black	Green	140 psi @ 72° F	Screw On	No	PTFE Thread Sealant	00000000	0000

Wye Connectors, Tube

For Tube OD, mm	Pipe Connection Material	Tube Connection Material	Color	Release Ring Color	Max. Pressure		Each
6	Brass	Polybutylene Plastic	Black	Green	140 psi @ 72° F	00000000	00000
8	Brass	Polybutylene Plastic	Black	Green	140 psi @ 72° F	00000000	0000
10	Brass	Polybutylene Plastic	Black	Green	140 psi @ 72° F	00000000	0000
12	Brass	Polybutylene Plastic	Black	Green	140 psi @ 72° F	00000000	0000

Manifold Adapters, Female Threaded Pipe × Tube

Use plugs to close off unused manifold holes.

BSPT Threads
Number of Inlets	Pipe Size	Number of Outlets	For Tube OD, mm	Pipe Connection Material	Tube Connection Material	Color	Release Ring Color	Max. Pressure	Mount Type	Mounting Fasteners Included		Each
2	1/4	6	6	Brass	Polybutylene Plastic	Black	Green	140 psi @ 72° F	Screw On	No	0000000	000000
2	3/8	6	8	Brass	Polybutylene Plastic	Black	Green	140 psi @ 72° F	Screw On	No	0000000	00000

Plugs

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

Tube Stem OD	Material	Color	Max. Pressure		Each
1/4"	Polybutylene Plastic	Green	140 psi @ 72° F	00000000	00000
3/8"	Polybutylene Plastic	Green	140 psi @ 72° F	00000000	0000
1/2"	Polybutylene Plastic	Green	140 psi @ 72° F	00000000	0000
6mm	Polybutylene Plastic	Green	140 psi @ 72° F	00000000	0000
8mm	Polybutylene Plastic	Green	140 psi @ 72° F	00000000	0000
10mm	Polybutylene Plastic	Green	140 psi @ 72° F	00000000	0000
12mm	Polybutylene Plastic	Green	140 psi @ 72° F	00000000	0000

Protective Covers

For Tube OD	Material		Each
1/4"	Polybutylene Plastic	00000000	00000
3/8"	Polybutylene Plastic	00000000	000
1/2"	Polybutylene Plastic	00000000	000
6mm	Polybutylene Plastic	00000000	000
8mm	Polybutylene Plastic	00000000	000
10mm	Polybutylene Plastic	00000000	000
12mm	Polybutylene Plastic	00000000	000

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How to Identify and Measure Fittings

Weld-Spatter-Resistant Push-to-Connect Tube Fittings for Air and Water