PEX Connectors | McMaster-Carr

Filter by

Shape

Fitting Connection

Tube ID

Material

Connects To

Fitting Type

Tube Material

Compatible With

For Use With

Maximum Pressure @ Temperature

REACH

RoHS

Tube OD

Specifications Met

Maximum Temperature

Copper Tube Size

U.S.–Mexico–Canada Agreement (USMCA) Qualifying

DFARS Specialty Metals

Exempt

Export Control Classification Number (ECCN)

Minimum Temperature

Gender

Color

Length

Socket Depth

34 Products

About Pipe and Fittings

Measure your pipe and fittings to identify their pipe size, thread size, schedule, and thread type. Then, find compatible components.

Barbed Tube Fittings for Drinking Water

Temperature Range: 32° to 180° F
Tubing:
All Fittings: Use with hard polyethylene plastic
Socket-Connect Fittings: Use with hard polyethylene plastic or copper
Specifications Met: See table

Connect these fittings to tubing with a ring and a crimping tool (both sold separately). They have multiple barbs that grip onto tubing for a secure hold. Fittings are compatible with Viega PEX tubing. Safe to use with drinking water, these fittings meet the strict standards of NSF/ANSI 61.

Straight Connectors, Tube

For Tube ID	Material	Max. Pressure	Specifications Met		Each
3/8"	PPSU Plastic	160 psi @ 72° F	ASTM F2159, NSF/ANSI 61	3528T752	00000
1/2"	PPSU Plastic	160 psi @ 72° F	ASTM F2159, NSF/ANSI 61	3528T753	000
3/4"	PPSU Plastic	160 psi @ 72° F	ASTM F2159, NSF/ANSI 61	3528T758	0000
1"	PPSU Plastic	160 psi @ 72° F	ASTM F2159, NSF/ANSI 61	3528T762	0000

90° Elbow Connectors, Tube

For Tube ID	Material	Max. Pressure	Specifications Met		Each
3/8"	PPSU Plastic	160 psi @ 72° F	ASTM F2159, NSF/ANSI 61	3528T569	00000
1/2"	PPSU Plastic	160 psi @ 72° F	ASTM F2159, NSF/ANSI 61	3528T577	0000
3/4"	PPSU Plastic	160 psi @ 72° F	ASTM F2159, NSF/ANSI 61	3528T583	0000
1"	PPSU Plastic	160 psi @ 72° F	ASTM F2159, NSF/ANSI 61	3528T592	0000

Tee Connectors, Tube

For Tube ID	Material	Max. Pressure	Specifications Met		Each
3/8"	PPSU Plastic	160 psi @ 72° F	ASTM F2159, NSF/ANSI 61	3528T594	00000
1/2"	PPSU Plastic	160 psi @ 72° F	ASTM F2159, NSF/ANSI 61	3528T624	0000
3/4"	PPSU Plastic	160 psi @ 72° F	ASTM F2159, NSF/ANSI 61	3528T664	0000
1"	PPSU Plastic	160 psi @ 72° F	ASTM F2159, NSF/ANSI 61	3528T688	0000

Crimping Tools

Crimping Tool

For Tube ID	Material		Each
3/8"	Steel	3528T59	0000000
1/2"	Steel	3528T61	000000
3/4"	Steel	3528T62	000000
1"	Steel	3528T973	000000

Crimping Rings

For Tube ID	Material	Pkg. Qty.		Pkg.
3/8"	Copper	5	3528T11	00000
1/2"	Copper	5	3528T12	0000
3/4"	Copper	5	3528T13	0000
1"	Copper	5	3528T63	0000

Press-Connect Fittings for Drinking Water

Maximum Pressure: 160 psi @ 72° F
Temperature Range: -30° to 180° F
Tubing: Use with hard polyethylene plastic or copper
Specifications Met: IAPMO Listed, NSF/ANSI 61

Connect drinking water lines with ease—these one-piece fittings have a built-in sleeve that crimps onto tubing for a leak-tight connection that doesn’t require heat or soldering. Each fitting has a viewing hole to prevent installation errors and ensure it’s fully inserted before installing them. Press them onto polyethylene tubing, also known as Viega PEX tubing, using a crimping tool (sold separately). Choose a crimping tool with a grip color that’s the same as your fitting’s ring color. They meet NSF/ANSI 61 for drinking water systems.

Fittings are IAPMO (International Association for Plumbing and Mechanical Officials) certified to comply with product performance standards. They also comply with the UPC (Uniform Plumbing Code) for installation and repair of plumbing systems.

Bronze fittings are strong and resist corrosion.

Straight Connectors, Female Press-Connect Tube

Tube Connection
Copper Tube Size	For Tube OD	Ring Color	Material	Lg.		Each
3/8	1/2"	Green	Bronze	1 3/8"	6679N69	00000
1/2	5/8"	Yellow	Bronze	1 3/8"	6679N71	0000
3/4	7/8"	Blue	Bronze	1 3/8"	6679N72	0000
1	1 1/8"	Orange	Bronze	1 11/16"	6679N73	00000

90° Elbow Connectors, Female Press-Connect Tube

Tube Connection
Copper Tube Size	For Tube OD	Ring Color	Material		Each
1/2	5/8"	Yellow	Bronze	6679N74	00000
3/4	7/8"	Blue	Bronze	6679N75	00000
1	1 1/8"	Orange	Bronze	6679N76	00000

Tee Connectors, Female Press-Connect Tube

Tube Connection
Copper Tube Size	For Tube OD	Ring Color	Material		Each
1/2	5/8"	Yellow	Bronze	6679N77	00000
3/4	7/8"	Blue	Bronze	6679N78	00000
1	1 1/8"	Orange	Bronze	6679N79	00000

Crimping Tools for Polyethylene Tubing

For Copper Tube Size	For Tube OD	Grip Color	Lg.	Material	Grip Material		Each
3/8	1/2"	Green	15 3/4"	Steel	Plastic	6677N11	0000000
1/2	5/8"	Yellow	15 3/4"	Steel	Plastic	6677N12	000000
3/4	7/8"	Blue	15 3/4"	Steel	Plastic	6677N4	000000
1	1 1/8"	Orange	18 3/8"	Steel	Plastic	6677N15	000000