Fernco Couplings | McMaster-Carr

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	Type Type


Connector	Reducer

Adapter	Cap

Saddle Tap	Reducing Adapter

	For Pipe Size For Pipe Size

3/4
1
1 1/4
1 1/2
2
3
4
5
6
8
10
12
15
18
6 to 12

	Shape Shape


Straight	Cap/Plug

90° Elbow	Tee

Wye

	For Pipe Material For Pipe Material

	For Use With For Use With

Water

Air

	For Pipe OD For Pipe OD

	Connection Style Connection Style

	Clamp On
	Socket Connect

	For End Type For End Type

Pipe

Socket

Corrugated Pipe

	Length Length

	Clamp Material Clamp Material

300 Series Stainless Steel

316 Stainless Steel

	Maximum Temperature Maximum Temperature

110° F

120° F

140° F

	Specifications Met Specifications Met

ASTM

ICC

CSA

	Minimum Temperature Minimum Temperature

-40° F

-30° F

0° F

	Gender Gender

Female

Male

	Maximum Pressure Maximum Pressure

4 psi @ 72° F

Not Rated

	Maximum Vacuum Maximum Vacuum

29 in. of Hg @ 72° F

Not Rated

	ID ID

	Pipe Size Pipe Size

	For Hole Diameter For Hole Diameter

4 1/8"

5 1/2"

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77 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.

Low-Pressure Clamp-On Connectors
for Drain, Waste, and Vent

Tighten the bands on these connectors to form a strong seal on pipe or fittings.

Socket end-to-socket end connectors allow you to connect two socket-end (female) fittings without using a pipe; the connectors attach over the end of the fitting. Pipe end-to-socket end connectors connect a pipe to a socket-end (female) fitting. Pipe end-to-corrugated pipe connectors connect a rigid plastic pipe to a corrugated polyethylene pipe; a groove in the coupling matches the groove in the corrugated pipe. They are great for storm and drainage systems.

Saddle-tap adapters allow you to tap into an existing pipeline. They have wraparound clamps that provide nearly 360° contact with pipe; as the clamps are tightened, pressure is uniformly distributed around the pipe for maximum support. To install, shut down your line and drill a hole in the pipe where you want to create a connection. Position the saddle over the hole and tighten the clamps.

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

90° Elbow Connectors

For Use With: Air, Water
Temperature Range: -40° to 120° F
Specifications Met: ASTM D5926, ICC-ES Standards
For Pipe Material: Stainless Steel, Iron, Steel, Aluminum, PVC Plastic, CPVC Plastic

Pipe End × Pipe End
For Pipe OD	For Pipe Size	Max. Pressure	Material	Clamp Material	Flexibility		Each
1.9"	1 1/2	4 psi @ 72° F	PVC Plastic	300 Series Stainless Steel	Flexible	0000000	000000
2 3/8"	2	4 psi @ 72° F	PVC Plastic	300 Series Stainless Steel	Flexible	0000000	00000
3 1/2"	3	4 psi @ 72° F	PVC Plastic	300 Series Stainless Steel	Flexible	0000000	00000
4 1/2"	4	4 psi @ 72° F	PVC Plastic	300 Series Stainless Steel	Flexible	0000000	00000

Tee Connectors

For Use With: Air, Water
Temperature Range: -40° to 120° F
Specifications Met: ASTM D5926, ICC-ES Standards
For Pipe Material: Stainless Steel, Iron, Steel, Aluminum, PVC Plastic, CPVC Plastic

Pipe End × Pipe End × Pipe End
For Pipe OD	For Pipe Size	Max. Pressure	Material	Clamp Material	Flexibility		Each
1.9"	1 1/2	4 psi @ 72° F	PVC Plastic	300 Series Stainless Steel	Flexible	0000000	000000
2 3/8"	2	4 psi @ 72° F	PVC Plastic	300 Series Stainless Steel	Flexible	0000000	00000
3 1/2"	3	4 psi @ 72° F	PVC Plastic	300 Series Stainless Steel	Flexible	0000000	00000
4 1/2"	4	4 psi @ 72° F	PVC Plastic	300 Series Stainless Steel	Flexible	0000000	00000

Straight Adapters

Pipe End x Socket End

Pipe End × Corrugated Pipe End

Pipe End x Socket End

Pipe End × Corrugated Pipe End

For Use With: Air, Water
Temperature Range: -40° to 120° F
Specifications Met: ASTM D5926
For Pipe Material: PVC Plastic, Polyethylene Plastic

		ID
For Pipe OD	For Pipe Size	(A)	(B)	Lg.	Max. Pressure	Max. Vacuum	Material	Clamp Material	Flexibility		Each
Pipe End × Socket End
1.9"	1 1/2	1.97"	2.26"	4"	4 psi @ 72° F	29 in. of Hg @ 72° F	PVC Plastic	300 Series Stainless Steel	Flexible	00000000	00000
2 3/8"	2	2.4"	2.69"	4"	4 psi @ 72° F	29 in. of Hg @ 72° F	PVC Plastic	300 Series Stainless Steel	Flexible	00000000	00000
3 1/2"	3	3.49"	3.9"	4"	4 psi @ 72° F	29 in. of Hg @ 72° F	PVC Plastic	300 Series Stainless Steel	Flexible	00000000	00000
4 1/2"	4	4 1/2"	4.92"	4"	4 psi @ 72° F	29 in. of Hg @ 72° F	PVC Plastic	300 Series Stainless Steel	Flexible	00000000	00000
Pipe End × Corrugated Pipe End
3 1/2"	3	3.44"	3.57"	4"	4 psi @ 72° F	Not Rated	PVC Plastic	300 Series Stainless Steel	Flexible	00000000	00000
4 1/2"	4	4.29"	4.76"	4"	4 psi @ 72° F	Not Rated	PVC Plastic	300 Series Stainless Steel	Flexible	00000000	00000
6 5/8"	6	6 1/2"	6.83"	6"	4 psi @ 72° F	Not Rated	PVC Plastic	300 Series Stainless Steel	Flexible	00000000	00000
8 5/8"	8	8.42"	9.76"	6"	4 psi @ 72° F	Not Rated	PVC Plastic	300 Series Stainless Steel	Flexible	00000000	00000

Straight Connectors

Socket End × Socket End

Pipe End × Pipe End

Socket End × Socket End

For Use With: Air, Water
Temperature Range: -40° to 120° F
Specifications Met:
Pipe: ASTM C1173, ASTM D5926, CSA Certified, ICC-ES Standards
Socket-Connect Pipe: ASTM D5926
For Pipe Material:
Pipe: Stainless Steel, Iron, Steel, Aluminum, PVC Plastic, CPVC Plastic,
Socket-Connect Pipe: PVC Plastic, Polyethylene Plastic

Pipe End × Pipe End
For Pipe OD	For Pipe Size	Lg.	Max. Pressure	Max. Vacuum	Material	Clamp Material	Flexibility		Each
1.05"	3/4	2 3/8"	4 psi @ 72° F	29 in. of Hg @ 72° F	PVC Plastic	300 Series Stainless Steel	Flexible	0000000	00000
1.315"	1	2 3/8"	4 psi @ 72° F	29 in. of Hg @ 72° F	PVC Plastic	300 Series Stainless Steel	Flexible	0000000	0000
1.66"	1 1/4	3 1/2"	4 psi @ 72° F	29 in. of Hg @ 72° F	PVC Plastic	300 Series Stainless Steel	Flexible	0000000	0000
1.66"	1 1/4	3 1/2"	4 psi @ 72° F	29 in. of Hg @ 72° F	PVC Plastic	316 Stainless Steel	Flexible	0000000	0000
1.9"	1 1/2	3 7/16"	4 psi @ 72° F	29 in. of Hg @ 72° F	PVC Plastic	300 Series Stainless Steel	Flexible	0000000	0000
1.9"	1 1/2	3 7/16"	4 psi @ 72° F	29 in. of Hg @ 72° F	PVC Plastic	316 Stainless Steel	Flexible	0000000	0000
2 3/8"	2	3 1/2"	4 psi @ 72° F	29 in. of Hg @ 72° F	PVC Plastic	300 Series Stainless Steel	Flexible	0000000	0000
2 3/8"	2	3 1/2"	4 psi @ 72° F	29 in. of Hg @ 72° F	PVC Plastic	316 Stainless Steel	Flexible	0000000	0000
3 1/2"	3	4"	4 psi @ 72° F	29 in. of Hg @ 72° F	PVC Plastic	300 Series Stainless Steel	Flexible	0000000	0000
3 1/2"	3	4"	4 psi @ 72° F	29 in. of Hg @ 72° F	PVC Plastic	316 Stainless Steel	Flexible	0000000	0000
4 1/2"	4	4"	4 psi @ 72° F	29 in. of Hg @ 72° F	PVC Plastic	300 Series Stainless Steel	Flexible	0000000	0000
4 1/2"	4	4"	4 psi @ 72° F	29 in. of Hg @ 72° F	PVC Plastic	316 Stainless Steel	Flexible	0000000	00000
5.563"	5	4"	4 psi @ 72° F	29 in. of Hg @ 72° F	PVC Plastic	300 Series Stainless Steel	Flexible	0000000	00000
6 5/8"	6	5 3/4"	4 psi @ 72° F	29 in. of Hg @ 72° F	PVC Plastic	300 Series Stainless Steel	Flexible	0000000	00000
6 5/8"	6	5 3/4"	4 psi @ 72° F	29 in. of Hg @ 72° F	PVC Plastic	316 Stainless Steel	Flexible	0000000	00000
8 5/8"	8	6"	4 psi @ 72° F	29 in. of Hg @ 72° F	PVC Plastic	300 Series Stainless Steel	Flexible	0000000	00000
8 5/8"	8	6"	4 psi @ 72° F	29 in. of Hg @ 72° F	PVC Plastic	316 Stainless Steel	Flexible	0000000	00000
10 3/4"	10	5 7/8"	4 psi @ 72° F	29 in. of Hg @ 72° F	PVC Plastic	300 Series Stainless Steel	Flexible	0000000	00000
12 3/4"	12	6 5/16"	4 psi @ 72° F	29 in. of Hg @ 72° F	PVC Plastic	300 Series Stainless Steel	Flexible	0000000	00000
12 3/4"	12	6 5/16"	4 psi @ 72° F	29 in. of Hg @ 72° F	PVC Plastic	316 Stainless Steel	Flexible	0000000	00000
15"	15	10"	4 psi @ 72° F	29 in. of Hg @ 72° F	PVC Plastic	300 Series Stainless Steel	Flexible	0000000	00000
18"	18	9 7/8"	4 psi @ 72° F	29 in. of Hg @ 72° F	PVC Plastic	300 Series Stainless Steel	Flexible	0000000	000000
Socket End × Socket End
1.9"	1 1/2	4"	4 psi @ 72° F	29 in. of Hg @ 72° F	PVC Plastic	300 Series Stainless Steel	Flexible	00000000	0000
2 3/8"	2	4"	4 psi @ 72° F	29 in. of Hg @ 72° F	PVC Plastic	300 Series Stainless Steel	Flexible	00000000	00000
3 1/2"	3	4"	4 psi @ 72° F	29 in. of Hg @ 72° F	PVC Plastic	300 Series Stainless Steel	Flexible	00000000	00000
4 1/2"	4	4"	4 psi @ 72° F	29 in. of Hg @ 72° F	PVC Plastic	300 Series Stainless Steel	Flexible	00000000	00000

Straight Reducers

For Use With: Air, Water
Temperature Range: -40° to 120° F
Specifications Met: ASTM C1173, ASTM D5926, CSA Certified, ICC-ES Standards
For Pipe Material: Stainless Steel, Iron, Steel, Aluminum, PVC Plastic, CPVC Plastic

For Pipe Size
(A)	(B)	Lg.	Max. Pressure	Max. Vacuum	Material	Clamp Material	Flexibility		Each
Pipe End × Pipe End
1 1/2	1 1/4	3 1/2"	4 psi @ 72° F	29 in. of Hg @ 72° F	PVC Plastic	300 Series Stainless Steel	Flexible	0000000	00000
10	8	6"	4 psi @ 72° F	29 in. of Hg @ 72° F	PVC Plastic	300 Series Stainless Steel	Flexible	0000000	00000
10	8	6"	4 psi @ 72° F	29 in. of Hg @ 72° F	PVC Plastic	316 Stainless Steel	Flexible	0000000	00000
12	10	6 3/8"	4 psi @ 72° F	29 in. of Hg @ 72° F	PVC Plastic	300 Series Stainless Steel	Flexible	0000000	00000
2	1 1/2	3 7/16"	4 psi @ 72° F	29 in. of Hg @ 72° F	PVC Plastic	300 Series Stainless Steel	Flexible	0000000	0000
2	1 1/4	3 1/2"	4 psi @ 72° F	29 in. of Hg @ 72° F	PVC Plastic	300 Series Stainless Steel	Flexible	0000000	0000
3	1 1/2	3 7/8"	4 psi @ 72° F	29 in. of Hg @ 72° F	PVC Plastic	300 Series Stainless Steel	Flexible	0000000	0000
3	2	4"	4 psi @ 72° F	29 in. of Hg @ 72° F	PVC Plastic	300 Series Stainless Steel	Flexible	0000000	0000
3	2	4"	4 psi @ 72° F	29 in. of Hg @ 72° F	PVC Plastic	316 Stainless Steel	Flexible	0000000	0000
4	1 1/2	4"	4 psi @ 72° F	29 in. of Hg @ 72° F	PVC Plastic	300 Series Stainless Steel	Flexible	0000000	00000
4	1 1/2	4"	4 psi @ 72° F	29 in. of Hg @ 72° F	PVC Plastic	316 Stainless Steel	Flexible	0000000	00000
4	2	3 7/8"	4 psi @ 72° F	29 in. of Hg @ 72° F	PVC Plastic	300 Series Stainless Steel	Flexible	0000000	00000
4	2	3 7/8"	4 psi @ 72° F	29 in. of Hg @ 72° F	PVC Plastic	316 Stainless Steel	Flexible	0000000	00000
4	3	4"	4 psi @ 72° F	29 in. of Hg @ 72° F	PVC Plastic	300 Series Stainless Steel	Flexible	0000000	0000
4	3	4"	4 psi @ 72° F	29 in. of Hg @ 72° F	PVC Plastic	316 Stainless Steel	Flexible	0000000	00000
5	3	3 7/8"	4 psi @ 72° F	29 in. of Hg @ 72° F	PVC Plastic	300 Series Stainless Steel	Flexible	0000000	00000
5	4	4"	4 psi @ 72° F	29 in. of Hg @ 72° F	PVC Plastic	300 Series Stainless Steel	Flexible	0000000	00000
6	3	5 3/4"	4 psi @ 72° F	29 in. of Hg @ 72° F	PVC Plastic	300 Series Stainless Steel	Flexible	0000000	00000
6	4	5 3/4"	4 psi @ 72° F	29 in. of Hg @ 72° F	PVC Plastic	300 Series Stainless Steel	Flexible	0000000	00000
6	4	5 3/4"	4 psi @ 72° F	29 in. of Hg @ 72° F	PVC Plastic	316 Stainless Steel	Flexible	0000000	00000
6	5	5 3/4"	4 psi @ 72° F	29 in. of Hg @ 72° F	PVC Plastic	300 Series Stainless Steel	Flexible	0000000	00000
8	4	6"	4 psi @ 72° F	29 in. of Hg @ 72° F	PVC Plastic	300 Series Stainless Steel	Flexible	0000000	00000
8	6	6"	4 psi @ 72° F	29 in. of Hg @ 72° F	PVC Plastic	300 Series Stainless Steel	Flexible	0000000	00000

Caps

For Use With: Air, Water
Temperature Range: -40° to 120° F
Specifications Met: ASTM D5926, ICC-ES Standards
For Pipe Material: Stainless Steel, Iron, Steel, Aluminum, PVC Plastic, CPVC Plastic

Pipe
For Pipe OD	For Pipe Size	Max. Pressure	Material	Clamp Material	Flexibility		Each
1.9"	1 1/2	4 psi @ 72° F	PVC Plastic	300 Series Stainless Steel	Flexible	0000000	00000
2 3/8"	2	4 psi @ 72° F	PVC Plastic	300 Series Stainless Steel	Flexible	0000000	0000
3 1/2"	3	4 psi @ 72° F	PVC Plastic	300 Series Stainless Steel	Flexible	0000000	0000
4 1/2"	4	4 psi @ 72° F	PVC Plastic	300 Series Stainless Steel	Flexible	0000000	0000

Saddle-Tap Tee Adapters

For Use With: Air, Water
Temperature Range: 0° to 110° F
For Pipe Material: PVC Plastic

For Pipe Size	For Pipe Size Range	For Hole Dia.	Lg.	Material	Clamp Material	Torque, in.-lbs.	Flexibility		Each
4	6 to 12	4 1/8"	8"	PVC Plastic	300 Series Stainless Steel	60	Flexible	00000000	0000000
6	6 to 12	5 1/2"	10 1/2"	PVC Plastic	300 Series Stainless Steel	60	Flexible	00000000	000000

Saddle-Tap Wye Adapters

For Use With: Air, Water
Temperature Range: 0° to 110° F
For Pipe Material: PVC Plastic

For Pipe Size	For Pipe Size Range	For Hole Dia.	Lg.	Material	Clamp Material	Torque, in.-lbs.	Flexibility		Each
4	6 to 12	4 1/8"	10 1/2"	PVC Plastic	300 Series Stainless Steel	60	Flexible	00000000	0000000
6	6 to 12	5 1/2"	13 1/2"	PVC Plastic	300 Series Stainless Steel	60	Flexible	00000000	000000

Cast Iron-to-PVC Pipe Adapters
for Drain, Waste, and Vent

These adapters connect PVC waste pipe to cast iron pipe without adding bulk. Instead of securing pipes together from the outside like clamp-on couplings, these flexible adapters fit into cast iron pipe to create a tight compression seal. Adapters should fit tightly—tap with a mallet to install. Made of PVC, these fittings won't corrode when exposed to water.

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

Straight Adapters, Male Socket Connect × Female Socket Connect

Adapter

For Use With: Water
Temperature Range: -30° to 140° F
Specifications Met: ASTM D5926

Pipe Size	For Pipe OD	Lg.	Material	Color	Max. Pressure		Each
2	2 3/8"	1 49/64"	PVC Plastic	Black	4 psi @ 72° F	0000000	000000
3	3 1/2"	2 21/64"	PVC Plastic	Black	4 psi @ 72° F	0000000	00000
4	4 1/2"	2 5/16"	PVC Plastic	Black	4 psi @ 72° F	0000000	00000

Straight Reducing Adapters, Male Socket Connect × Female Socket Connect

Reducing Adapter

For Use With: Water
Temperature Range: -30° to 140° F
Specifications Met: ASTM D5926

	Female
Male Pipe Size	Pipe Size	For Pipe OD	Lg.	Material	Color	Max. Pressure		Each
3	2	3 1/2"	1 41/64"	PVC Plastic	Black	4 psi @ 72° F	0000000	000000

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V-Belts

High-Capacity Narrow-Wedge V-Belts

How to Identify and Measure Fittings

Low-Pressure Clamp-On Connectorsfor Drain, Waste, and Vent

Cast Iron-to-PVC Pipe Adaptersfor Drain, Waste, and Vent

Low-Pressure Clamp-On Connectors
for Drain, Waste, and Vent

Cast Iron-to-PVC Pipe Adapters
for Drain, Waste, and Vent