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31 Gallon RV Waste Black Water Holding Tank WT-3100

  • Based on 89 reviews
Condition: New
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$185.99 Why this price?
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30-day refund/replacement

To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.

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Availability: In Stock.
Fulfilled by classAcustoms

Arrives Oct 11 – Oct 13
Order within 22 hours and 12 minutes
Available payment plans shown during checkout

Features

  • 31 Gallon RV Waste Water Holding Tank MADE IN THE USA by Class A Customs using Medium Density Polyethylene (MDPE) Resin TANK NOT FOR FRESH OR DRINKING WATER USE WASTE/GRAY WATER USE ONLY Used in RVs Campers, Trailers, Motorhomes and Tiny Houses
  • INSTALLED OUTLET 3 ABS Female Pipe - outlet can not be moved DO NOT over-tighten fittings damage will occur Dump valves do not hook directly to the 3" ABS fitting, from the outlet run PVC or ABS piping (not included), dump valve (not included) is added to the piping.
  • INLET & VENT INSTALLATION Class A Customs Black Water Tanks only come with the outlet the end user will determine where the inlet and vent will need to be placed and install, hardware NOT included. TANK MUST BE VENTED allowing air in and out when in use. *DO NOT PRESSURIZE TANK* DO NOT over-tighten fittings damage will occur.
  • NOT INCLUDED Inlet and Vent Fittings / Additional Fittings / Hardware / Mounting Hardware / Dump Valve / Piping NOT INCLUDED

Description

RV Waste Water Holding Tank MADE IN THE USA by Class A Customs using Medium Density Polyethylene (MDPE) Resin TANK NOT FOR FRESH OR DRINKING WATER USE – WASTE/GRAY WATER USE ONLY -SEAMLESS One-piece construction, no seams to burst COLOR Black OEM PART No retail box - no install instructions Have a certified technician install all parts to prevent product damage and personal injury PREPARATION Tanks are made in a warehouse clean each tank prior to use to remove any debris, scuffs or marking from the manufacturing process INSTALLED OUTLET 3” ABS Female Pipe - outlet can not be moved DO NOT over-tighten fittings damage will occur Dump valves do not hook directly to the 3" ABS fitting, from the outlet run PVC or ABS piping, dump valve is added to the piping. INLET & VENT INSTALLATION Class A Customs Black Water Tanks only come with the outlet the end user will determine where the inlet and vent will need to be placed and install, hardware NOT included. TANK MUST BE VENTED allowing air in and out when in use. DO NOT PRESSURIZE TANK DO NOT over-tighten fittings damage will occur. MOUNTING & BRACING be sure to secure tank to prevent movement and be sure to secure due to weight when loaded DO NOT place weight on tank.

Brand: Class A Customs


Color: Black


Material: Polyvinyl Chloride (PVC), Resin, Polyethylene (PE)


Product Dimensions: 47.5"L x 21.75"W x 8"H


Capacity: 31 Gallons


Capacity: 31 Gallons


Item Dimensions L x W x H: 47.5"L x 21.75"W x 8"H


Manufacturer: Class A Customs


Brand Name: Class A Customs


Color: Black


Material: Polyvinyl Chloride (PVC), Resin, Polyethylene (PE)


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Oct 11 – Oct 13

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


  • Great tank
Great tank for replacement of any black tank in a trailer. Was not exactly as the same that I removed but fit great and has standard size. Madewell and a sturdy.
Reviewed in the United States on December 24, 2023 by FRANK FRANK

  • Good tank at a reasonable price.
I got two of these tank made by the same company here in the USA, a 31 and a 40 gallon capacity. Both came in in a cardboard box with no damage to the tank since they are light weight. The outside of the tank is opaqued black finish while the inside is a sleek and shiny smooth finish which I like for keeping the fluids and solids from sticking to the walls and it makes it easier to power flush using the tornado 360-degree RV holding tank Rinser. They came with only the discharge port fitting ( 3”) installed at the lowest point of the tank and the rest of the plumbing fitting like vent line, toilet discharge, tank rinser .. has to be poked and installed by the installer based on your layout requirements. This is not a rigid tank and I don’t think that anyone wants that in this type of application since the need to be able to flex and absorb the road vibration in order to stay in one piece with out cracking. I do believe this is a good tank that will serve the purpose of what it’s intended for with great results. ... show more
Reviewed in the United States on August 9, 2022 by handy_mora handy_mora

  • Perfect very strong tank
Exact what I was looking for for my application, easy to install, strong tank.
Reviewed in the United States on September 7, 2021 by Edo

  • Great black tank.
Exactly what I ordered! Definitely a great company and product. The tank arrived in half the time they said it would!
Reviewed in the United States on June 5, 2021 by Ben b.

  • Poor measurements on description.
The unit did not fit in rail support. It cost more to send back than what unit cost.
Reviewed in the United States on July 29, 2024 by Gary Snodgrass

  • Well built
Perfect fit for my application
Reviewed in the United States on April 23, 2020 by alan feinberg

  • It worked perfectly.
It worked perfectly.
Reviewed in the United States on October 19, 2020 by Thomas E Bland

  • Works great
Arrived on time, sturdy.
Reviewed in the United States on October 22, 2020 by Kel Carmen

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