Sink Drum Traps | McMaster-Carr

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18 Products

Grease Traps


Steel	Plastic

Remove and retain grease, fats, and oils from wastewater to prevent blockages in pipes. These traps are PDI-certified, tested under severe operating conditions. They can handle 40 to 50 lbs. of grease at a time and 20 to 25 gallons of wastewater per minute.

Steel—Can suspend from the ceiling, which frees up floor space for extra room and equipment. Steel traps connect through a no-hub pipe coupling (not included).

Plastic—Offers more corrosion resistance against wastewater, fatty acids, and cleaning supplies than steel traps. Plastic traps are also lighter and have a smoother surface, which makes them easier to move around and scrub. Plastic traps have threaded connections.

	Grease Wt. Cap., lb.	Lg.	Wd.	Ht.	Max. Temp., ° F	Includes		Each
Unthreaded Inlet and Outlet







	Steel

	3	3	20	40	24 1/8"	17 1/4"	15"	—	Lift Handle, Slip-Resistant Cover	0000000	0000000


	3	3	25	50	26 1/8"	19 7/8"	17"	—	Lift Handle, Slip-Resistant Cover	0000000	000000


	Threaded NPT Female Inlet and Outlet







					Plastic

					2	2	20	40	29"	19 1/2"	14"	212	—	0000000	000000


					3	3	25	50	32 1/2"	19 1/2"	17"	212	—	0000000	000000

Chemical-Resistant Sink Drains with Collection Trap

Often used in lab sinks, these drains have a removable collection trap that catches sediment and objects. The trap also blocks vapors from returning up through the drain.

Slip-Joint Outlet Connection with PVC Trap

Image of Product. Front orientation. Sink Drains. Chemical-Resistant Sink Drains with Collection Trap, Slip-Joint Outlet Connection with PVC Trap.

Drains with a slip-joint connection include an adapter tube with an unthreaded male outlet for use as an extension to another slip-joint connection. Trap withstands frost, boiling water, and detergents.

		Overall
	Cap., fl. oz.	Dia.	Ht.	For Sink Drain Opening Dia.	Top Dia.	Outlet OD	Material	Color	Trap Color		Each
Sink Drains with Adapter Tube and Plastic Stopper



		8	3 3/8"	10 5/8"	1 7/8" to 3"	3 3/8"	1 1/2"	PVC	White	White	000000	0000000

Pipe Outlet Connection with Polypropylene Trap

Image of Product. Front orientation. Sink Drains. Chemical-Resistant Sink Drains with Collection Trap, Polypropylene Trap, Pipe.

Drains with a polypropylene trap are semi-clear, so you can monitor sediment and debris as it drops in.

Polypropylene—Polypropylene drains resist dissolving if chemicals, such as acids, go down your drain.

		Overall				Outlet
	Cap., gal.	Dia.	Ht.	For Sink Drain Opening Dia.	Top Dia.	Pipe Size	Thread Type	Gender	Material	Color	Trap Clarity	Specs. Met		Each
Sink Drains with Plastic Stopper



		1	7 1/2"	11 3/4"	1 7/8" to 3"	3 3/8"	1 1/2	NPT	Male	Polypropylene	Black	Semi-Clear	ASTM F1412	0000000	0000000


		2	7 1/2"	17"	1 7/8" to 3"	3 3/8"	1 1/2	NPT	Male	Polypropylene	Black	Semi-Clear	ASTM F1412	0000000	000000

Accessories for Sink Drains

Sink Drain Trap Extension Tubing

Straight—Straight sink drain trap extension tubing is often used when connecting your drain to Gravity-Flow Polypropylene Pipe Fittings for Corrosive Chemical Waste.

			Outlet		Inlet
	Shape	Swivel Type	Pipe Size	Gender	Pipe Size	Thread Type	Gender	Lg.		Each
Polypropylene



		Straight	Swivels Until Tightened	1 1/2	Male	1 1/2	NPT	Female	12"	00000000	000000

Sink Drain Fittings

90° Elbow—Use 90° elbow sink drain fittings when your drain pipe comes in from the floor instead of the wall.

			Outlet			Inlet
	Shape	Swivel Type	Pipe Size	Thread Type	Gender	Pipe Size	Thread Type	Gender		Each
Polypropylene



		90° Elbow	Swivels Until Tightened	1 1/2	NPT	Male	1 1/2	NPT	Female	00000000	000000

Pipe Outlet Connection with Glass Trap

Drains with a glass trap are clear, so you can monitor sediment and debris as it drops in. They also include a standard-width mason jar that is easy to replace.

Polypropylene—Polypropylene drains resist dissolving if chemicals, such as acids, go down your drain.

		Overall				Outlet
	Cap., fl. oz.	Dia.	Ht.	For Sink Drain Opening Dia.	Top Dia.	Pipe Size	Thread Type	Gender	Material	Color	Trap Color		Each
Sink Drains with Plastic Stopper



		32	6"	12 1/2"	1 7/8" to 3"	3 3/8"	1 1/2	NPT	Male	Polypropylene	Black	Clear	00000000	0000000

Accessories for Sink Drains

Sink Drain Trap Extension Tubing

Straight—Straight sink drain trap extension tubing is often used when connecting your drain to Gravity-Flow Polypropylene Pipe Fittings for Corrosive Chemical Waste.

			Outlet		Inlet
	Shape	Swivel Type	Pipe Size	Gender	Pipe Size	Thread Type	Gender	Lg.		Each
Polypropylene



		Straight	Swivels Until Tightened	1 1/2	Male	1 1/2	NPT	Female	12"	00000000	000000

Sink Drain Fittings

90° Elbow—Use 90° elbow sink drain fittings when your drain pipe comes in from the floor instead of the wall.

			Outlet			Inlet
	Shape	Swivel Type	Pipe Size	Thread Type	Gender	Pipe Size	Thread Type	Gender		Each
Polypropylene



		90° Elbow	Swivels Until Tightened	1 1/2	NPT	Male	1 1/2	NPT	Female	00000000	000000

Sediment Traps


Removable Basket

Prevent drain blockage—these traps have a reusable basket to catch debris, such as metal chips and stones, before it enters your sewage system. For quick disposal, unthread the thumb screws by hand to access and remove the reusable basket. When the tank is closed, a gasket seals in odors.

Install these traps under your sink as a P-trap replacement. The tank and basket are made of polypropylene, so they resist acids and other chemicals.

	Outlet Pipe Size	Outlet Ht.	Ht.	Wd.	Dp.	Gasket Material	Max. Temp., ° F	Features		Each
Threaded NPT Male Inlet and Outlet







	Polypropylene

	2	1 1/2	8"	1 1/2	8"	11 1/4"	8"	8"	Buna-N	230	Removable Basket, Clamps with Thumbscrews	0000000	0000000


	5	1 1/2	9"	1 1/2	9"	12 1/2"	13"	13"	Buna-N	230	Removable Basket, Clamps with Thumbscrews	0000000	000000

Sediment Traps for Natural Gas

Get ahead of your water heater maintenance—these traps catch debris from natural gas lines before it can enter the tank. Also called a drip leg, these traps are often required by building standards. They’re plated in zinc, so they’re mildly corrosion resistant.

Install them after your shutoff valve and as close to the water heater inlet as possible. To empty the trap, unscrew the cap and dispose of any debris.

	Outlet Ht.	Ht.	Wd.	Dp.	Max. Temp., ° F	Features		Each
Threaded NPT Male Inlet and Outlet







	Zinc-Plated Carbon Steel

	3	1/2	1/2	4"	7 3/4"	4 1/4"	1 1/4"	600	Threaded Drain Cap	0000000	000000


	3	3/4	3/4	4"	7 3/4"	4 1/4"	1 1/4"	600	Threaded Drain Cap	0000000	00000

Neutralization Tanks


Style A	Style B	Style C

For safe and legal disposal of corrosive chemicals, these tanks neutralize acid waste before it drains into sewer systems. Fill them with limestone chips (sold separately), which chemically react with waste to reduce its acidity. Often used in labs, these tanks rest on a solid surface below your sink. The inlet attaches to your sink drain where a P-trap would go, and the outlet threads into your drain pipe. These tanks are made of polyethylene to withstand prolonged contact with harsh chemicals.

Choosing a tank size involves several factors, including how much waste you generate and the types of chemicals you plan to treat. For effective neutralization, waste should spend three hours in your tank before exiting via gravity flow. Select a tank that is greater in size than the volume of chemicals you plan to dispose of in a three-hour period.

Styles A and B—Style A and B tanks have larger capacities to process greater amounts of waste.

Style C—Style C tanks have an adjustable-height inlet with a slip joint fitting to connect to sink drains.

									Inlet			Outlet
	Style	Cap., gal.	Dia.	Wd.	Dp.	Ht.	Color	Clarity	ID	Pipe Size	Ht.	Pipe Size	Ht.	Includes		Each
Polyethylene







				Threaded NPT Female Inlet × NPT Male Outlet

				A	5	—	14"	6"	18 3/4"	White	Opaque	—	1 1/2	21"	1 1/2	15"	Removable Cap	0000000	0000000


				B	6	11 3/4"	—	—	18 3/4"	Black	Opaque	—	1 1/2	18 1/2"	1 1/2	12 1/2"	Removable Cap	0000000	000000




						Slip Joint Inlet × NPT Male Outlet

						C	3	—	12"	6 1/2"	12 3/4"	White	Opaque	1 1/2"	—	14 1/2" to 23 1/2"	1 1/2	9 1/2"	Removable Cap	0000000	000000

Limestone Chips

Before use, fill your tank up to the outlet with limestone chips. One 50-lb. bag of chips will fill a five-gallon tank. Schedule regular maintenance to clean your tank and check the chip level—neutralization will erode chips over time. Disposing of non-chemical waste, such as coffee grounds, into these tanks will make the limestone chips less effective.

Container Net Wt., lb.	Container Type		Each
50	Bag	0000000	000000