20-Gallon Galley Water Tank (Fresh/Grey)
The NW Conversions 20 gallon galley water tank fits seamlessly into tight spaces without sacrificing interior room. AVC RIG carries it for Sprinter, Transit and ProMaster builders who want fresh water or grey water storage inside the van.
About the 20 Gallon Galley Water Tank
The compact box shape works in galley cabinets, bench seats, or custom storage cavities. It drains straight through your subfloor with a ball valve or connects to an undermount tank for additional storage. Use one as your fresh water tank, or run it as grey water storage under the galley sink.
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
- IAPMO TS 4 Certified (fresh water)
- IAPMO TS 2 Certified (grey water)
- CSA B45.6 Certified
- Made in the USA
- TEi listed and RVIA approved


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
The fittings come pre-installed, so plumbing the galley is simple. Because the 20 gallon galley water tank is certified for both fresh water and grey water, it works on either side of your sink.
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
Planning the galley? The 20 gallon galley water tank fits well inside an aluminum sink cabinet, and pairs with the Ruvati stainless steel sink. Short on space? See the 10-gallon galley water tank.