
About the Product
Fits seamlessly into tight spaces without sacrificing interior room. Compact box shape works in galley cabinets, bench seats, or custom storage cavities. Use it as a fresh water tank or a grey water tank. TEi lists it as both a potable water tank and a waste holding tank. Drains straight through your subfloor with a ball valve or connects to an undermount tank for additional storage.
Features
Specifications
- Nominal dimensions: 18" L x 16" W x 18.375" H
- Actual dimensions may vary up to 1.5% each.
- Capacity: 20 gallons
- Dry Weight: 16 lbs
- Filled Weight: 183 lbs
- Recommended Sensor: KUS S5U-17
- Recommended Heating Pad: Facon CW-T1218
- Not designed for pressurized systems, must be vented
Materials & Certifications
- BPA-free, food-grade polyethylene
- Made in the USA
- TEi listed and RVIA approved
- TEi listed to IAPMO TS 4 for fresh water
- TEi listed to IAPMO TS 2 and CSA B45.6 for grey water (waste holding)


What's Included
- Water Tank
- (x2) Adjustable straps
- (x4) Mounting brackets
Ports & Plumbing
- 1/2" NPT fittings, pre-installed
- 1.5" NPT fittings, pre-installed
Shipping & Lead Time
- Ships in 1-2 business days
Note: Despite great care taken during manufacturing and fulfillment, plastic tanks can become dirty and/or scuffed in transit. This does not constitute a damaged tank. Plastic tanks can also become slightly warped, especially on the flat surfaces. This is normal and does not render the tank defective. Maintaining a completely straight/flat surface on a rotationally molded part is not always possible, but we make every effort to keep surfaces within a 1.5 degree tolerance.
Compatibility
- Compatible with any van, truck, or RV platform where dimensions allow, including Sprinter, Transit, and ProMaster builds
Resources
RackUp+Go On YouTube
Large Inventory
Expertly Curated
Free Shipping
Fast & Free Shipping
Price Guarantee
RackUp PRO Deals
30-Day Returns
Hassle-Free Returns
Got Questions?
We're here to help!