Drain Tanks | McMaster-Carr

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79 Products

Wall-Mount Plastic Easy-Drain Tanks

These tanks are often used as gravity-fed dispensers.

Tanks																						Replacement Caps
									Drain					Mounting Holes
Cap., gal.	Wd.	Dp.	Ht.	Thk.	Fill Opening Dia.	Graduations	Color	Clarity	Pipe Size	Gender	Material	Bottom Slope Angle	Max. Temp., ° F	No. of	Dia.	Mounting Fasteners Included	UV Protection	Features	Includes		Each		Each







			Polyethylene

			2 1/2	15"	7"	14"	1/8"	5"	1/2 gal.	White	Semi-Clear	3/4 NPT	Female	Polyethylene	30°	120	4	3/8"	No	UV Resistant	Seamless	Vented Fill Cap	1792N11	000000	4439T22	000000


			3	12"	7"	14"	1/8"	5"	1/2 gal.	White	Semi-Clear	3/4 NPT	Female	Polyethylene	18°	120	8	5/16"	No	UV Resistant	Seamless	Vented Fill Cap	1792N13	00000	4439T22	00000
			4	11"	11"	14"	1/8"	8"	1/4 gal.	White	Semi-Clear	1 1/4 NPT	Female	Polyethylene	56°	120	4	5/16"	No	UV Resistant	Seamless	Vented Fill Cap	1792N14	00000	5152T35	00000
			5	11"	11"	18"	1/8"	8"	1/4 gal.	White	Semi-Clear	1 1/4 NPT	Female	Polyethylene	56°	120	6	5/16"	No	UV Resistant	Seamless	Vented Fill Cap	1792N15	00000	5152T35	00000
			10	13"	13"	21 1/2"	1/4"	8"	1 gal.	White	Semi-Clear	1 1/4 NPT	Female	Polyethylene	54°	120	6	5/16"	No	UV Resistant	Seamless	Vented Fill Cap	1792N12	000000	5152T35	00000
			15	16"	16"	23"	1/4"	8"	1/2 gal.	White	Semi-Clear	1 1/4 NPT	Female	Polyethylene	46°	120	8	5/16"	No	UV Resistant	Seamless	Vented Fill Cap	1792N16	000000	5152T35	00000

Plastic Easy-Drain Tanks

Shown with

Stand with

Mixer Mount

The seamless, heavy-wall construction makes these tanks durable and easy to clean. The bottom is sloped to ensure easy drainage.

Stands—Stands (sold separately) allow a 14 _1/4" minimum clearance from the bottom of drain to the floor.

Tanks																	Stands		Stands with Mixer Mount
						Drain
Cap., gal.	Dia.	Ht.	Thk.	Color	Clarity	Pipe Size	Gender	Material	Bottom Slope Angle	Lid Type	Seal Material	Max. Temp., ° F	Features	Includes		Each		Each		Each







			Polyethylene

			5	11"	15 3/4"	3/16"	White	Semi-Clear	1/2 NPT	Female	PVC	19°	Loose Fitting	EPDM	140	Seamless	Lid	3687K101	0000000	3687K611	0000000	3687K501	0000000


			10	15 1/4"	18"	3/16"	White	Semi-Clear	1/2 NPT	Female	PVC	19°	Loose Fitting	EPDM	140	Seamless	Lid	3687K102	000000	3687K612	000000	3687K502	000000
			15	15 3/4"	22 3/4"	3/16"	White	Semi-Clear	1/2 NPT	Female	PVC	19°	Loose Fitting	EPDM	140	Seamless	Lid	3687K103	000000	3687K612	000000	3687K502	000000
			30	18 3/4"	33 1/4"	1/4"	White	Semi-Clear	1/2 NPT	Female	PVC	19°	Loose Fitting	EPDM	140	Seamless	Lid	3687K111	000000	3687K614	000000	3687K511	00000000
			55	23 1/4"	38 1/2"	1/4"	White	Semi-Clear	1/2 NPT	Female	PVC	19°	Loose Fitting	EPDM	140	Seamless	Lid	3687K122	000000	3687K616	000000	3687K522	00000000
			100	30 1/2"	41 3/4"	5/16"	White	Semi-Clear	1 NPT	Female	PVC	19°	Loose Fitting	EPDM	140	Seamless	Lid	3687K133	000000	3687K617	00000000	3687K533	00000000
			200	31 1/4"	66 1/2"	5/16"	White	Semi-Clear	1 NPT	Female	PVC	19°	Loose Fitting	EPDM	140	Seamless	Lid	3687K155	000000	3687K618	00000000	3687K555	00000000
			250	42 1/2"	50 1/2"	5/16"	White	Semi-Clear	1 1/2 NPT	Female	PVC	19°	Loose Fitting	EPDM	140	Seamless	Lid	3687K166	00000000	3687K619	00000000	3687K566	00000000

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	6327N12	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	6327N13	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	6327N11	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	6327N14	000000

Stainless Steel Easy-Drain Tanks

The bottom of these tanks is sloped to ensure easy and complete drainage.

Threaded Drain Connection

Image of Product. Front orientation. Tanks. Stainless Steel Easy-Drain Tanks.

	Tanks											Unhinged Lids		Hinged Lids
						Drain
	Cap., gal.	Dia.	Ht.	Ga.	Appearance	Pipe Size	Gender	Leg Dia.	Bottom Slope Angle		Each		Each		Each
304 Stainless Steel



		30	18"	45"	16	Dull	1 NPT	Female	2"	10°	3772K72	000000000	3772K22	0000000	3772K32	0000000


		50	22 3/4"	45"	16	Dull	1 NPT	Female	2"	10°	3772K73	00000000	3772K23	000000	3772K33	000000
		80	30"	45"	16	Dull	1 NPT	Female	2"	10°	3772K74	00000000	3772K24	000000	3772K34	000000
		100	30"	52"	16	Dull	1 NPT	Female	2"	10°	3772K15	00000000	———	0	3772K35	000000
		200	38"	66"	16	Dull	1 1/2 NPT	Female	2"	10°	3772K16	00000000	———	0	3772K37	000000
		300	45"	66"	16	Dull	1 1/2 NPT	Female	2"	10°	3772K17	00000000	———	0	3772K19	000000
		500	52"	78"	14	Dull	1 1/2 NPT	Female	2"	10°	3772K18	00000000	———	0	3772K21	00000000

Sanitary Quick-Clamp Drain Connection

For tanks with sanitary quick-clamp, see High-Polish Metal Quick-Clamp Sanitary Tube Fittings for compatible fittings.

	Tanks											Unhinged Lids		Hinged Lids
						Drain
	Cap., gal.	Dia.	Ht.	Ga.	Appearance	For Tube OD	Fitting Flange OD	Leg Dia.	Bottom Slope Angle		Each		Each		Each
304 Stainless Steel



		30	18"	45"	16	Polished	1"	2"	2"	10°	3772K62	000000000	3772K22	0000000	3772K32	0000000


		50	22 3/4"	45"	16	Polished	1"	2"	2"	10°	3772K63	00000000	3772K23	000000	3772K33	000000
		80	30"	45"	16	Polished	1"	2"	2"	10°	3772K64	00000000	3772K24	000000	3772K34	000000
		100	30"	52"	16	Polished	1"	2"	2"	10°	3772K11	00000000	———	0	3772K35	000000
		200	38"	66"	16	Polished	1"	2"	2"	10°	3772K12	00000000	———	0	3772K37	000000
		300	45"	66"	16	Polished	1 1/2"	2"	2"	10°	3772K13	00000000	———	0	3772K19	000000
		500	52"	78"	14	Polished	2"	2 1/2"	2"	10°	3772K14	000000000	———	0	3772K21	00000000

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	6371N11	0000000


	5	1 1/2	9"	1 1/2	9"	12 1/2"	13"	13"	Buna-N	230	Removable Basket, Clamps with Thumbscrews	6371N12	000000

Sanitary Easy-Drain Tanks


Top View

Store and transport liquids in bulk in sanitary environments such as food and pharmaceutical plants. These tanks have a one-piece sloped bottom for easy and complete drainage, a highly polished surface, and continuously welded seams. By leaving no room for liquid to hang around after use, their design prevents bacterial growth. Made of stainless steel, they resist frequent washdowns with harsh sanitizers. They connect with quick-clamp fittings—also known as tri-clamp fittings—so they’re easily disassembled for regular cleaning. Also known as intermediate bulk containers (IBCs), these tanks take up less floor space than drums. They can also be stacked up to three high to save additional space, even when full. All meet National Fire Protection Agency Code 30 for use with flammable and combustible liquids.

							Drain
Cap., gal.	Wd.	Dp.	Ht.	Ga.	Wt., lb.	Fill Opening Dia.	For Tube OD	Fitting Flange OD	Leg Ht.	Space Saving Features	Flammability Rating		Each







			304 Stainless Steel

			180	42"	48"	29"	10	332	22 1/2"	2"	2.516"	9"	Stackable	NFPA 30	9018N11	000000000


			250	42"	48"	35"	10	375	22 1/2"	2"	2.516"	9"	Stackable	NFPA 30	9018N12	00000000
			300	42"	48"	41"	10	432	22 1/2"	2"	2.516"	9"	Stackable	NFPA 30	9018N13	00000000
			350	42"	48"	47"	10	465	22 1/2"	2"	2.516"	9"	Stackable	NFPA 30	9018N14	00000000
			450	42"	48"	59"	10	530	22 1/2"	2"	2.516"	9"	Stackable	NFPA 30	9018N15	00000000
			550	42"	48"	71"	10	645	22 1/2"	2"	2.516"	9"	Stackable	NFPA 30	9018N16	00000000

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	6551N11	000000


	3	3/4	3/4	4"	7 3/4"	4 1/4"	1 1/4"	600	Threaded Drain Cap	6551N12	00000

Double-Wall Steel Tanks with Forklift Entry

Provide extra protection for products that require double-wall containment, such as diesel and waste oil, solvents, and antifreeze. The tank's second wall forms a spill-control compartment that holds 110% of the primary compartment's storage capacity. They have an opening for venting in the primary compartment, an opening for leak detection in the secondary compartment, and two openings for emergency venting in the primary and secondary compartments.

						Max. Fork			Primary Compartment Openings		Secondary Compartment Openings
Cap., gal.	Wd.	Dp.	Ht.	Ga.	No. of Entry Points for Forklifts	Wd.	Ht.	Color	Pipe Size (No. of)	Gender	Pipe Size (No. of)	Gender	Specs. Met		Each







			Powder-Coated Steel

			120	34"	29"	37 1/2"	12	2	19"	1 1/2"	White	2 NPT (5)	Female	2 NPT (2)	Female	UL 142	3696K81	000000000


			240	55"	34"	37 1/2"	12	2	40"	1 1/2"	White	2 NPT (5), 3 NPT (1)	Female	2 NPT (1), 3 NPT (1)	Female	UL 142	3696K83	00000000

Steel Tanks with Forklift Entry


250 gal. Capacity	500 gal. Capacity

These tanks are typically used for storing fuel and waste oil.

500 gal. Capacity—500-gal. capacity tank has nonslip steps and hand grips for easy access to the top of the tank.

					Max. Fork			Top Openings		Drain
Cap., gal.	Dia.	Ht.	Ga.	No. of Entry Points for Forklifts	Wd.	Ht.	Color	Pipe Size (No. of)	Gender	Pipe Size	Gender	Specs. Met	Features		Each







			Painted Steel

			250	36"	63"	12	2	5 3/4"	2 5/8"	Red	2 NPT (4), 3 NPT (1)	Female	1 1/2 NPT	Female	UL 142	—	3683K11	000000000


			500	46"	75"	10	2	5 3/4"	2 5/8"	Red	2 NPT (4), 4 NPT (1)	Female	1 1/2 NPT	Female	UL 142	Hand Grips, Steps	3683K13	00000000

Elevated Steel Tanks

A lifting lug on top makes these tanks easy to transport. They are typically used for storing fuel and waste oil.

						Top Openings		Drain
Cap., gal.	Wd.	Dp.	Ht.	Ga.	Color	Pipe Size (No. of)	Gender	Pipe Size	Gender	Channel Thk.	Specs. Met		Each







			Painted Steel

			185	40"	38"	41"	10	Red	2 NPT (4), 3 NPT (1)	Female	1 NPT	Female	1/4"	UL 142	37415K55	000000000


			300	60"	38"	41"	10	Red	2 NPT (4), 3 NPT (1)	Female	1 NPT	Female	1/4"	UL 142	37415K71	00000000
			500	65"	48"	51"	10	Red	2 NPT (4), 4 NPT (1)	Female	1 NPT	Female	1/4"	UL 142	37415K72	00000000

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	1236N22	0000000


	3	3	25	50	26 1/8"	19 7/8"	17"	—	Lift Handle, Slip-Resistant Cover	1236N23	000000


	Threaded NPT Female Inlet and Outlet







					Plastic

					2	2	20	40	29"	19 1/2"	14"	212	—	1236N21	000000


					3	3	25	50	32 1/2"	19 1/2"	17"	212	—	1236N24	000000