Tectite Fittings | McMaster-Carr

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Copper Tube Size

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116 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.

Tubing: Use with K, M, L copper, polyethylene plastic, CPVC

Connect these fittings to copper tubing with a push—no heat, solder, or flux required. They have an internal gripping ring and O-ring that hold the fitting secure. They also come with a tube support or retainer if you want to use them with polyethylene plastic (PEX) tubing. They are also known as instant fittings. Fittings are brass for good corrosion resistance. They are compatible with SharkBite® fittings. To adhere to safety standards for drinking water systems, use fittings that meet NSF/ANSI 61.

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

Straight Adapters, Tube × Male Threaded Pipe

For Use With: See Table
Temperature Range: 32° to 200° F
Specifications Met: NSF/ANSI 61

NPT Threads
For Use With	Copper Tube Size	For Tube OD	Pipe Size	Material	Release Ring Material	Release Ring Color	Max. Pressure		Each
Air, Drinking Water	1/4	3/8"	1/2	Brass	Plastic	Black	200 psi @ 72° F	00000000	00000
Air, Drinking Water	3/8	1/2"	3/8	Brass	Plastic	Black	200 psi @ 72° F	0000000	00000
Air, Drinking Water	3/8	1/2"	1/2	Brass	Plastic	Black	200 psi @ 72° F	0000000	0000
Air, Drinking Water	1/2	5/8"	1/2	Brass	Plastic	Black	200 psi @ 72° F	0000000	0000
Air, Drinking Water	1/2	5/8"	3/4	Brass	Plastic	Black	200 psi @ 72° F	0000000	0000
Air, Drinking Water	3/4	7/8"	3/4	Brass	Plastic	Black	200 psi @ 72° F	0000000	0000
Air, Drinking Water	3/4	7/8"	1	Brass	Plastic	Black	200 psi @ 72° F	00000000	00000
Air, Drinking Water	1	1 1/8"	3/4	Brass	Plastic	Black	200 psi @ 72° F	0000000	00000
Air, Drinking Water	1	1 1/8"	1	Brass	Plastic	Black	200 psi @ 72° F	0000000	00000
Air, Drinking Water	1 1/4	1 3/8"	1 1/4	Brass	Plastic	Black	200 psi @ 72° F	00000000	00000
Air, Drinking Water	1 1/2	1 5/8"	1 1/2	Brass	Plastic	Black	200 psi @ 72° F	0000000	00000
Air, Drinking Water	2	2 1/8"	2	Brass	Plastic	Black	200 psi @ 72° F	0000000	00000
Drinking Water	3/4	7/8"	1/2	Brass	Plastic	Tan	250 psi @ 72° F	00000000	0000

Straight Adapters, Tube × Female Threaded Pipe

For Use With: See Table
Temperature Range: 32° to 200° F
Specifications Met: NSF/ANSI 61

NPT Threads
For Use With	Copper Tube Size	For Tube OD	Pipe Size	Material	Release Ring Material	Release Ring Color	Max. Pressure		Each
Air, Drinking Water	3/8	1/2"	3/8	Brass	Plastic	Black	200 psi @ 72° F	0000000	000000
Air, Drinking Water	3/8	1/2"	1/2	Brass	Plastic	Black	200 psi @ 72° F	0000000	0000
Air, Drinking Water	1/2	5/8"	1/2	Brass	Plastic	Black	200 psi @ 72° F	0000000	0000
Air, Drinking Water	1/2	5/8"	3/4	Brass	Plastic	Black	200 psi @ 72° F	0000000	0000
Air, Drinking Water	3/4	7/8"	1/2	Brass	Plastic	Black	200 psi @ 72° F	00000000	0000
Air, Drinking Water	3/4	7/8"	3/4	Brass	Plastic	Black	200 psi @ 72° F	0000000	0000
Air, Drinking Water	1	1 1/8"	1	Brass	Plastic	Black	200 psi @ 72° F	0000000	00000
Air, Drinking Water	1 1/2	1 5/8"	1 1/2	Brass	Plastic	Black	200 psi @ 72° F	0000000	00000
Air, Drinking Water	2	2 1/8"	2	Brass	Plastic	Black	200 psi @ 72° F	0000000	00000
Air, Drinking Water, Water	1 1/4	1 3/8"	1 1/4	Brass	Plastic	Black	200 psi @ 72° F	00000000	00000
Drinking Water	1/4	3/8"	1/2	Brass	Plastic	Tan	200 psi @ 72° F	00000000	0000

Straight Adapters, Copper Tube × Polybutylene Plastic Tubing

For Use With: Air, Water, Drinking Water
Temperature Range: 32° to 200° F
Specifications Met: NSF/ANSI 61

Use adapters for polybutylene tubing to transition from old water supply plumbing to copper or polyethylene tubing.

Copper Tube Size	For Tube OD	Material	Release Ring Material	Release Ring Color	Maximum Pressure		Each
1/2	5/8"	Brass	Plastic	Black, Gray	200 psi @ 72° F	00000000	000000
3/4	7/8"	Brass	Plastic	Black, Gray	200 psi @ 72° F	00000000	00000

Straight Adapters, Copper Tube × PVC Plastic Pipe

For Use With: Water, Drinking Water
Temperature Range: 35° to 200° F
Specifications Met: NSF/ANSI 61

Connect copper tubing to PVC pipe. These adapters are also known as transition couplings. To remove the adapter from your PVC pipe, you'll need a release clip with depth gauge (sold separately).

Tube Connection		Pipe Connection
Copper Tube Size	For Tube OD	For Pipe Material	Pipe Size	Material	Release Ring Material	Release Ring Color	Max. Pressure		Each
1/2	5/8"	PVC Plastic	1/2	Brass	Plastic	Tan, White	200 psi @ 72° F	00000000	000000
3/4	7/8"	PVC Plastic	3/4	Brass	Plastic	Tan, White	200 psi @ 72° F	00000000	00000
1	1 1/8"	PVC Plastic	1	Brass	Plastic	Tan, White	200 psi @ 72° F	00000000	00000

Straight Adapters, Tube Stem × Tube

For Use With: Air, Drinking Water
Temperature Range: 32° to 200° F
Specifications Met: NSF/ANSI 61

Fittings with tube stem insert into the tube end of another fitting in place of a length of tubing.

Tube Stem Connection		Tube Connection
Copper Tube Size	Tube Stem OD	Copper Tube Size	For Tube OD	Material	Release Ring Material	Release Ring Color	Max. Pressure		Each
1/2	5/8"	3/8	1/2"	Brass	Plastic	Black	200 psi @ 72° F	00000000	00000
3/4	7/8"	3/8	1/2"	Brass	Plastic	Black	200 psi @ 72° F	00000000	00000
1	1 1/8"	1/2	5/8"	Brass	Plastic	Black	200 psi @ 72° F	00000000	00000

Straight Adapters, Tube Stem × Female Threaded Pipe

For Use With: Air, Drinking Water
Temperature Range: 32° to 200° F
Specifications Met: NSF/ANSI 61

Fittings with tube stem insert into the tube end of another fitting in place of a length of tubing.

NPT Threads
Copper Tube Size	Tube Stem OD	Pipe Size	Material	Max. Pressure		Each
1	1 1/8"	1	Brass	200 psi @ 72° F	00000000	000000

Straight Adapters, Copper Tube Stem × CPVC Plastic Pipe

For Use With: Air, Water
Temperature Range: 32° to 200° F

Connect copper tubing to CPVC pipe. These adapters are also known as transition couplings. Fittings with tube stem insert into the tube end of another fitting in place of a length of tubing.

		Pipe Connection
Copper Tube Size	Tube Stem OD	For Pipe Material	Pipe Size	Material	Release Ring Material	Release Ring Color	Max. Pressure		Each
1/2	5/8"	CPVC Plastic	1/2	Brass	Plastic	White	200 psi @ 72° F	00000000	00000
3/4	7/8"	CPVC Plastic	3/4	Brass	Plastic	White	200 psi @ 72° F	00000000	0000

Straight Connectors, Tube

For Use With: Air, Drinking Water
Temperature Range: 32° to 200° F
Specifications Met: NSF/ANSI 61

Copper Tube Size	For Tube OD	Material	Release Ring Material	Release Ring Color	Max. Pressure		Each
1/4	3/8"	Brass	Plastic	Black	200 psi @ 72° F	00000000	00000
3/8	1/2"	Brass	Plastic	Black	200 psi @ 72° F	0000000	00000
1/2	5/8"	Brass	Plastic	Black	200 psi @ 72° F	0000000	0000
3/4	7/8"	Brass	Plastic	Black	200 psi @ 72° F	0000000	0000
1	1 1/8"	Brass	Plastic	Black	200 psi @ 72° F	0000000	00000
1 1/4	1 3/8"	Brass	Plastic	Black	200 psi @ 72° F	00000000	00000
1 1/2	1 5/8"	Brass	Plastic	Black	200 psi @ 72° F	0000000	00000
2	2 1/8"	Brass	Plastic	Black	200 psi @ 72° F	0000000	00000

Offset Straight Connectors, Tube

For Use With: Air, Drinking Water, Water
Temperature Range: 32° to 200° F
Specifications Met: NSF/ANSI 61

Fittings with offset configuration are smooth inside the longer end, giving extra clearance so they can slide freely over the end of a tube to repair a leak. They’re also known as slip couplings and repair couplings.

Copper Tube Size	For Tube OD	Material	Release Ring Material	Release Ring Color	Max. Pressure		Each
1/2	5/8"	Brass	Plastic	Black	200 psi @ 72° F	00000000	000000
3/4	7/8"	Brass	Plastic	Black	200 psi @ 72° F	00000000	00000
1	1 1/8"	Brass	Plastic	Black	200 psi @ 72° F	00000000	00000

Straight Reducers, Tube

For Use With: Air, Drinking Water
Temperature Range: 32° to 200° F
Specifications Met: NSF/ANSI 61

Tube Connection (A)		Tube Connection (B)
Copper Tube Size	For Tube OD	Copper Tube Size	For Tube OD	Material	Release Ring Material	Release Ring Color	Max. Pressure		Each
1/2	5/8"	3/8	1/2"	Brass	Plastic	Black	200 psi @ 72° F	0000000	00000
3/4	7/8"	1/2	5/8"	Brass	Plastic	Black	200 psi @ 72° F	0000000	0000
1	1 1/8"	3/4	7/8"	Brass	Plastic	Black	200 psi @ 72° F	0000000	00000
1 1/2	1 5/8"	1	1 1/8"	Brass	Plastic	Black	200 psi @ 72° F	00000000	00000

90° Elbow Adapters, Tube × Male Threaded Pipe

For Use With: See Table
Temperature Range: 32° to 200° F
Specifications Met: NSF/ANSI 61

NPT Threads
For Use With	Copper Tube Size	For Tube OD	Pipe Size	Material	Release Ring Material	Release Ring Color	Max. Pressure		Each
Air, Drinking Water	3/4	7/8"	3/4	Brass	Plastic	Black	200 psi @ 72° F	00000000	000000
Drinking Water	1/4	3/8"	3/8	Brass	Plastic	Tan	200 psi @ 72° F	0000000	00000
Drinking Water	1/2	5/8"	3/8	Brass	Plastic	Tan	400 psi @ 72° F	00000000	0000
Drinking Water	1/2	5/8"	1/2	Brass	Plastic	Tan	400 psi @ 72° F	00000000	0000

90° Elbow Adapters, Tube × Female Threaded Pipe

For Use With: Air, Drinking Water
Temperature Range: 32° to 200° F
Specifications Met: NSF/ANSI 61

NPT Threads
Copper Tube Size	For Tube OD	Pipe Size	Material	Release Ring Material	Release Ring Color	Max. Pressure		Each
3/8	1/2"	3/8	Brass	Plastic	Black	200 psi @ 72° F	00000000	000000
1/2	5/8"	1/2	Brass	Plastic	Black	200 psi @ 72° F	00000000	0000
1/2	5/8"	3/4	Brass	Plastic	Black	200 psi @ 72° F	00000000	0000

90° Elbow Adapters with Mounting Tab, Tube × Female Threaded Pipe

For Use With: Air, Drinking Water
Temperature Range: 32° to 200° F
Specifications Met: NSF/ANSI 61

NPT Threads
Copper Tube Size	For Tube OD	Pipe Size	Material	Release Ring Material	Release Ring Color	Max. Pressure	Mounting Hole Dia.		Each
3/8	1/2"	1/2	Brass	Plastic	Black	200 psi @ 72° F	13/64"	00000000	00000
1/2	5/8"	1/2	Brass	Plastic	Black	200 psi @ 72° F	13/64"	00000000	0000
3/4	7/8"	3/4	Brass	Plastic	Black	200 psi @ 72° F	13/64"	00000000	00000

90° Elbow Connectors, Tube

For Use With: See Table
Temperature Range: 32° to 200° F
Specifications Met: NSF/ANSI 61

For Use With	Copper Tube Size	For Tube OD	Material	Release Ring Material	Release Ring Color	Max. Pressure		Each
Air, Drinking Water	1/4	3/8"	Brass	Plastic	Black	200 psi @ 72° F	00000000	00000
Air, Drinking Water	1/2	5/8"	Brass	Plastic	Black	200 psi @ 72° F	0000000	0000
Air, Drinking Water	3/4	7/8"	Brass	Plastic	Black	200 psi @ 72° F	0000000	00000
Air, Drinking Water	1	1 1/8"	Brass	Plastic	Black	200 psi @ 72° F	0000000	00000
Air, Drinking Water	1 1/4	1 3/8"	Brass	Plastic	Black	200 psi @ 72° F	00000000	00000
Air, Drinking Water	1 1/2	1 5/8"	Brass	Plastic	Black	200 psi @ 72° F	0000000	00000
Air, Drinking Water	2	2 1/8"	Brass	Plastic	Black	200 psi @ 72° F	0000000	00000
Drinking Water	3/8	1/2"	Brass	Plastic	Tan	200 psi @ 72° F	00000000	00000

90° Elbow Connectors with Mounting Tab, Tube

For Use With: Air, Drinking Water, Water
Temperature Range: 32° to 200° F
Specifications Met: NSF/ANSI 61

Copper Tube Size	Material	Release Ring Material	Release Ring Color	Max. Pressure		Each
1/2	Brass	Plastic	Black	200 psi @ 72° F	00000000	000000

90° Elbow Reducers, Tube

For Use With: Air, Drinking Water
Temperature Range: 32° to 200° F
Specifications Met: NSF/ANSI 61

Tube Connection (A)		Tube Connection (B)
Copper Tube Size	For Tube OD	Copper Tube Size	For Tube OD	Material	Release Ring Material	Release Ring Color	Max. Pressure		Each
1/2	5/8"	3/8	1/2"	Brass	Plastic	Black	200 psi @ 72° F	00000000	00000
3/4	7/8"	1/2	5/8"	Brass	Plastic	Black	200 psi @ 72° F	00000000	00000
1	1 1/8"	3/4	7/8"	Brass	Plastic	Black	200 psi @ 72° F	00000000	00000

Tee Connectors, Tube

For Use With: Air, Drinking Water
Temperature Range: 32° to 200° F
Specifications Met: NSF/ANSI 61

Copper Tube Size	For Tube OD	Material	Release Ring Material	Release Ring Color	Max. Pressure		Each
1/4	3/8"	Brass	Plastic	Black	200 psi @ 72° F	00000000	00000
3/8	1/2"	Brass	Plastic	Black	200 psi @ 72° F	0000000	00000
1/2	5/8"	Brass	Plastic	Black	200 psi @ 72° F	0000000	00000
3/4	7/8"	Brass	Plastic	Black	200 psi @ 72° F	0000000	00000
1	1 1/8"	Brass	Plastic	Black	200 psi @ 72° F	0000000	00000
1 1/4	1 3/8"	Brass	Plastic	Black	200 psi @ 72° F	00000000	00000
1 1/2	1 5/8"	Brass	Plastic	Black	200 psi @ 72° F	0000000	000000
2	2 1/8"	Brass	Plastic	Black	200 psi @ 72° F	0000000	000000

Long Tee Connectors, Tube

For Use With: Air, Drinking Water, Water
Temperature Range: 32° to 200° F
Specifications Met: NSF/ANSI 61

Copper Tube Size	For Tube OD	Material	Release Ring Material	Release Ring Color	Max. Pressure		Each
1/2	__	Brass	Plastic	Black	200 psi @ 72° F	00000000	000000
3/4	7/8"	Brass	Plastic	Black	200 psi @ 72° F	00000000	00000

Inline Tee Reducers, Tube

For Use With: See Table
Temperature Range: 32° to 200° F
Specifications Met: NSF/ANSI 61

Inline tees are also known as branch tees.

	Tube Connection (A)		Tube Connection (B)
For Use With	Copper Tube Size	For Tube OD	Copper Tube Size	For Tube OD	Material	Release Ring Material	Release Ring Color	Max. Pressure		Each
Air, Drinking Water	1/2	5/8"	1/4	3/8"	Brass	Plastic	Black	200 psi @ 72° F	00000000	000000
Air, Drinking Water	1/2	5/8"	3/8	1/2"	Brass	Plastic	Black	200 psi @ 72° F	00000000	00000
Air, Drinking Water	3/4	7/8"	1/2	5/8"	Brass	Plastic	Black	200 psi @ 72° F	00000000	00000
Air, Drinking Water	1	1 1/8"	3/4	7/8"	Brass	Plastic	Black	200 psi @ 72° F	00000000	00000
Air, Drinking Water, Water	1 1/4	1 3/8"	3/4	__	Brass	Plastic	Black	200 psi @ 72° F	00000000	00000
Air, Drinking Water, Water	1 1/4	1 3/8"	1	1 1/8"	Brass	Plastic	Black	200 psi @ 72° F	00000000	00000
Air, Drinking Water, Water	1 1/2	1 5/8"	3/4	__	Brass	Plastic	Black	200 psi @ 72° F	00000000	00000
Air, Drinking Water, Water	1 1/2	1 5/8"	1	1 1/8"	Brass	Plastic	Black	200 psi @ 72° F	00000000	00000

Long Inline Tee Adapters, Tube × Female Threaded Pipe

For Use With: Air, Drinking Water, Water
Temperature Range: 32° to 200° F
Specifications Met: NSF/ANSI 61

Inline tees are also known as branch tees.

NPT Threads
Copper Tube Size	For Tube OD	Pipe Size	Material	Release Ring Material	Release Ring Color	Max. Pressure		Each
1/2	5/8"	1/2	Brass	Plastic	Black	200 psi @ 72° F	00000000	000000
3/4	7/8"	3/4	Brass	Plastic	Black	200 psi @ 72° F	00000000	00000

Right-Angle Tee Reducers, Tube

For Use With: Air, Drinking Water
Temperature Range: 32° to 200° F
Specifications Met: NSF/ANSI 61

Right-angle tees are also known as run tees.

Tube Connection (A)		Tube Connection (B)
Copper Tube Size	For Tube OD	Copper Tube Size	For Tube OD	Material	Release Ring Material	Release Ring Color	Max. Pressure		Each
1/2	5/8"	3/4	7/8"	Brass	Plastic	Black	200 psi @ 72° F	00000000	000000
3/4	7/8"	1/2	5/8"	Brass	Plastic	Black	200 psi @ 72° F	00000000	00000

Caps

Cap

Cap with Drain

For Use With: Air, Drinking Water
Temperature Range: 32° to 200° F
Specifications Met: NSF/ANSI 61

Caps with drain let you clear your line without disconnecting your fittings.

						Standard Caps		Caps With Drain
Copper Tube Size	For Tube OD	Material	Release Ring Material	Release Ring Color	Max. Pressure		Each		Each
1/4	3/8"	Brass	Plastic	Black	200 psi @ 72° F	00000000	00000	000000	00
3/8	1/2"	Brass	Plastic	Black	200 psi @ 72° F	0000000	0000	000000	00
1/2	5/8"	Brass	Plastic	Black	200 psi @ 72° F	0000000	0000	00000000	00000
3/4	7/8"	Brass	Plastic	Black	200 psi @ 72° F	0000000	0000	00000000	00000
1	1 1/8"	Brass	Plastic	Black	200 psi @ 72° F	0000000	00000	000000	00
1 1/4	1 3/8"	Brass	Plastic	Black	200 psi @ 72° F	00000000	00000	000000	00
1 1/2	1 5/8"	Brass	Plastic	Black	200 psi @ 72° F	0000000	00000	000000	00
2	2 1/8"	Brass	Plastic	Black	200 psi @ 72° F	0000000	00000	000000	00

Release Clips

Clip

Clip with Depth Gauge

A release clip is required to disconnect the fitting from the tubing.

Use release clips with a depth gauge to mark how far you need to insert your PVC pipe into its fitting to ensure a watertight connection.

For Pipes
For Copper Tube Size	For Tube OD	For Pipe Size	For Pipe Material	Features		Each
__	__	1/2	CPVC Plastic	__	00000000	00000
__	__	1/2	PVC Plastic	Depth Gauge	00000000	0000
__	__	3/4	CPVC Plastic	__	00000000	0000
__	__	3/4	PVC Plastic	Depth Gauge	00000000	0000
__	__	1	CPVC Plastic	__	00000000	0000
__	__	1	PVC Plastic	Depth Gauge	00000000	0000
For Tubes
1/4	3/8"	__	__	__	0000000	0000
3/8	1/2"	__	__	__	0000000	0000
1/2	5/8"	__	__	__	0000000	0000
3/4	7/8"	__	__	__	0000000	000
1	1 1/8"	__	__	__	0000000	0000

Chamfering and Deburring Depth Gauge Tools

Use the chamfering and deburring depth gauge tool (sold separately) to deburr tubing before inserting it into the fitting.

For Copper Tube Size	For Tube OD		Each
3/8, 1/2, 3/4, 1	1/2", 5/8", 7/8", 1 1/8"	00000000	000000

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How to Identify and Measure Fittings

Brass Push-to-Connect Fittings for Copper Tubing