

🚐 Upgrade your RV’s backbone with the ultimate 48-gallon black water tank—because freedom means fewer stops!
The Class A Customs 48 Gallon RV Waste Black Water Holding Tank is a robust, seamless, one-piece tank made in the USA from high-quality Medium Density Polyethylene resin. Designed exclusively for waste and gray water, it features a fixed 3” ABS female outlet and requires user-installed vent and inlet fittings. Measuring 56 x 30 x 9 inches, this tank offers extended capacity for longer trips, ensuring reliable, durable performance for RVs, campers, trailers, and tiny houses.
| ASIN | B07RLTG22R |
| Best Sellers Rank | #1,015,377 in Automotive ( See Top 100 in Automotive ) #101 in RV Black Water Tanks |
| Brand | classAcustoms |
| Capacity | 48 Gallons |
| Color | Black |
| Customer Reviews | 4.2 4.2 out of 5 stars (46) |
| Date First Available | May 7, 2019 |
| Manufacturer | Class A Customs |
| Manufacturer Part Number | WT-4800 |
| Material | Polyethylene (PE), Polyvinyl Chloride (PVC), Resin |
| Model | WT-4800 |
| Product Dimensions | 56 x 30 x 9 inches |
| Shape | Rectangular |
E**A
Now able to go 10+ days without draining.
Great Upgrade from 30 gallon tank. Some customizing to install. Used banding iron straps for extra support, ends and middle. Also installed two sprayer, fill end and drain end pointing at sensors. Very pleased with Quality. Great Price.
H**A
Muy bueno para mi rv buena calidad
S**N
Buyer beware
Tank wouldn’t work and the company wants you to pay to ship it back to them. Terrible customer service.
A**R
Not worth the money and work
This tank needed too much work. You have to find and purchase a valve, intake with cap and seal, and worst part was the gate valve which did not fit or seal properly. Also, it is not mobile. Try moving that thing filled with sewage!
A**W
Damaged product
We purchased this item and left it in box until we were ready to use it. When we got it out, the item was damaged and we aren’t able to replace item because we waited past the return window.
Trustpilot
1 month ago
2 days ago