Class A Customs 40 Gallon RV Waste Black Water Holding Tank WT-4000






Key features
- •40 Gallon Black / Waste Water Holding Tank Manufactured by Class A Customs Part# WT-4000
- •Black Water Tank Used for Human Waste or Gray Water - DO NOT USE FOR FRESH/DRINKING WATER
- •MADE WITH Medium Density Polyethylene (MDPE) Resin
- •SEAMLESS One piece seamless construction, no seams to burst RESISTANT Stain, Corrosion and Rust Resistant
- •TANK MEASUREMENTS 56.50" Length (not including pipe) x 24.50" Width x 9" Depth at largest point - 3" PVC Female Pipe Adapter DO NOT over-tighten fittings damage will occur
Class A Customs 40 Gallon RV Waste Black Water Holding Tank WT-4000
List Price: $247.28$222.55DEALYou Save: $24.73 (10%)
Free shippingFree Returns – 30 daysFree Order CancellationSecure Payment2–3 Days DeliveryGet It June 23, 2026In Stock (1)No marketing spamNo account requiredFulfilment by FedEx / Amazon / UPS / ShipwirePayPal / Card Buyer Protection
Customer Reviews
Reviews sourced from verified Amazon purchasers4.4
out of 5
Based on 10 reviews
5★
90%
4★
10%
3★
0%
2★
0%
1★
0%
All around, a solid looking tank that isn't leaking.
Christopher✓ Verified Purchase•July 22, 2023
My black tank was leaking, the guy that was going to fix it said to order this, then no call no showed twice. Requested a refund after going under and seeing it wasn't the one that matched. The seller allowed it, but I would pay shipping back, which in my case would have been half the product value. Wasn't worth it for me to return. I got under and measured everything out, with new piping, braces, and a new angle it would fit.
So, it's been installed now for less than a week. Cutting into it, I was pleased that the tank was thicker than my last one. There aren't any random holes I've found in it yet. The exit valve work that came on the tank was a little sloppy, but otherwise I can't complain about it. The angle is also really nice, things flow on direction from start to finish, and it holds is at a good angle for proper flow. If anything goes wrong with it, I'll update, but it's worth what I paid for it so far.
So, it's been installed now for less than a week. Cutting into it, I was pleased that the tank was thicker than my last one. There aren't any random holes I've found in it yet. The exit valve work that came on the tank was a little sloppy, but otherwise I can't complain about it. The angle is also really nice, things flow on direction from start to finish, and it holds is at a good angle for proper flow. If anything goes wrong with it, I'll update, but it's worth what I paid for it so far.
You get what you pay for
Stephen wyman✓ Verified Purchase•July 17, 2023
While it didnt exactly line up with the previous tank, after some slight modification it worked just fine, sturdy and quality material
Just as expected
David C. Weston✓ Verified Purchase•July 1, 2023
Best value for the money.
Black Holfing Tank
Martha Cupp✓ Verified Purchase•June 30, 2023
Product as described
Well made
Mark A Van Valkenburg ✓ Verified Purchase•June 6, 2023
Fit nicely, and a defiant improvement over old tank.
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