Wye Conduit | McMaster-Carr

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Conduit Trade Size

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Conduit Connection

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Flexibility

For Conduit Flexibility

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High-Pressure Washdown

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

Yes

DFARS Specialty Metals

Exempt

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UL Recognized Component

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14 Products

About Conduit

Compare rigid and flexible conduit materials and identify the trade size for compatible fittings.

Conduit Type

EMT

The most common choice for indoor walls and ceilings

2 products

FMC

Protect wiring from crushing as it makes tight bends

3 products

Conduit Type

MPT

Bend and twist machine wiring through tight spaces

9 products

Fitting Type

Adapter

Connect different types of conduit or threads

3 products

Flexible Plastic (MPT) Conduit and Fittings

Bend, twist, and wrap machine wiring through tight spaces. Corrugated like ENT, this conduit is more resilient against repeated flexing. Pair it with compatible fittings to seal out liquid and protect wiring indoors and outdoors. Conduit and fittings are made of nylon to resist moisture and chemicals.

Wye Conduit Connectors

Snap-In Connection

Branch one run of conduit into two, continuing in the same direction.

	Temp., ° F	Enclosure Rating	Specs. Met		Each
Snap-In Conduit Connection







	Nylon

	5/16	Female	Black	-40 to 245	IP68, IP69K	UL Recognized Component, UL 94 V-0	6963T111	000000


	3/8	Female	Black	-40 to 245	IP68, IP69K	UL Recognized Component, UL 94 V-0	6963T32	00000

Wye Conduit Reducers

Snap-In Connection

Take one run of conduit and branch it into two smaller ones, continuing in the same direction.

	Temp., ° F	Enclosure Rating	Specs. Met		Each
Snap-In Conduit Connection







	Nylon

	5/16 × 1/4	Female	Black	-40 to 245	IP68, IP69K	UL Recognized Component, UL 94 V-0	6963T42	000000


	3/8 × 5/16	Female	Black	-40 to 245	IP68, IP69K	UL Recognized Component, UL 94 V-0	6963T41	00000
	1/2 × 3/8	Female	Black	-40 to 245	IP68, IP69K	UL Recognized Component, UL 94 V-0	6963T33	00000
	3/4 × 1/2	Female	Black	-40 to 245	IP68, IP69K	UL Recognized Component, UL 94 V-0	6963T34	00000
	1 × 3/4	Female	Black	-40 to 245	IP68, IP69K	UL Recognized Component, UL 94 V-0	6963T35	00000
	1 1/4 × 1	Female	Black	-40 to 245	IP68, IP69K	UL Recognized Component, UL 94 V-0	6963T36	00000
	1 1/2 × 1 1/4	Female	Black	-40 to 245	IP68, IP69K	UL Recognized Component, UL 94 V-0	6963T37	00000

Thin-Wall (EMT) Metal Conduit and Fittings

With a thinner wall, this conduit is a lighter alternative to IMC and RMC. The most common choice for indoor walls and ceilings, it shields wiring from scrapes and bumps. EMT can dent or crush from impact, however, so it should be routed away from high‑traffic areas where carts and vehicles pass through.

Wye Conduit Reducers

Screw-Clamp

Connection

Take one run of conduit and branch it into two smaller ones, continuing in the same direction.

Zinc Alloy—A good option for light duty applications that don't require high strength. These fittings resist occasional exposure to moisture.

		Each
Screw-Clamp Conduit Connection







	Zinc Alloy

	3/4 × 1/2	Female	C-UL Listed, UL Listed	8081K81	000000


	1 × 3/4	Female	C-UL Listed, UL Listed	8081K82	00000

Flexible Metal (FMC) Conduit and Fittings

Make tight bends and protect wiring from being crushed. This corrugated conduit snakes around corners where rigid metal conduit won’t fit. For use indoors, it’s ideal for short connections or runs through walls in spaces that require both flexibility and durability.

Wye Electrical Box Connectors


Screw-Clamp × Threaded	Screw-Clamp × Snap-In	Push-In × Snap-In

Join two pieces of conduit to one knockout.

Zinc Alloy—A good option for light duty applications that don't require high strength. These fittings resist occasional exposure to moisture.

	Conduit Connection		Knockout Connection
	Conduit Trade Size	Gender	Pipe Size	Thread Type	Knockout Trade Size	Gender	Includes	Specs. Met		Each
Screw-Clamp Conduit Connection × Threaded Knockout Connection







				Zinc Alloy

				3/8	Female	1/2	NPSM	—	Male	Locknut	CSA Certified, UL Listed	8180K22	00000


				Screw-Clamp Conduit Connection × Snap-In Knockout Connection







								Zinc Alloy

								3/8	Female	—	—	1/2	Male	—	CSA Certified, UL Listed	8180K34	0000


								Push-In Conduit Connection × Snap-In Knockout Connection







												Zinc Alloy

												3/8	Female	—	—	1/2	Male	—	CSA Certified, UL Listed	7969K31	0000