NW Conversions 10 Gallon Galley Water Tank (Fresh or Grey)
10 Gallon Universal RV & Van Water Tank – 12" x 12" x 18"
Maximize water storage in tight spaces with the NW Conversions 10 Gallon Galley Water Tank, engineered for compact van builds, RV cabinetry, and custom conversions. Whether used as a fresh water tank or grey water tank, this universal rectangular design fits seamlessly into galleys, bench seats, storage compartments, and tight cabinet cavities.
With a compact 12" x 12" x 18" footprint, this tank is ideal for Sprinter, Transit, and Ram Promaster conversions, as well as truck campers, trailers, and tiny homes. It can be configured to drain directly through the subfloor with a ball valve or connected to an undermount grey tank for expanded capacity.
Built in the USA from BPA-free food-grade polyethylene and certified to industry standards, this 10-gallon tank delivers durability, safety, and installation flexibility.
Compact Water Storage for Van Galleys & RV Cabinets
This tank is purpose-built for builders who need reliable water storage without sacrificing valuable interior space.
Perfect for:
-
Camper van sink systems
-
Compact RV galleys
-
Grey water drain systems
-
Truck camper builds
-
Tiny homes on wheels
-
DIY van conversions
Key Features
Space-Saving Rectangular Design
-
Compact 12" x 12" x 18" dimensions
-
Fits inside galley cabinets and bench seating
-
Ideal for tight interior layouts
-
Easy to frame and secure
Fresh or Grey Water Compatible
-
Safe for potable fresh water storage
-
Can also be configured as a grey water tank
-
Designed for gravity drain systems
Certified & Safe Construction
-
Rotomolded from BPA-Free Food Grade Polyethylene
-
IAPMO TS 4 Tested and Certified
-
TEI Listed
-
RVIA+ Certified
-
Made in the USA
Versatile Plumbing Connections
-
Pre-installed 1/2" NPT fitting
-
Pre-installed 1.5" NPT fitting
-
Easy integration with fill lines, water pumps, vents, and sensors
-
Compatible with subfloor drain configurations or secondary grey tanks
Lightweight & Durable
-
Weighs only 12 lbs empty
-
Built to withstand road vibration and off-grid travel
-
Impact-resistant polyethylene construction
Installation Flexibility
This tank can be configured in multiple ways:
-
Drain directly through the subfloor using a ball valve
-
Connect to an external or undermount grey water tank
-
Use as a standalone fresh water supply tank
-
Integrate with 12V water pump systems
-
Install water level sensors using NPT fittings
Important: Tank must be properly vented and is designed for gravity fill systems only. Do not pressurize.
Technical Specifications
-
Capacity: 10 Gallons
-
Dimensions: 12" L x 12" W x 18" H
-
Weight: 12 lbs
-
Material: BPA-Free Food Grade Polyethylene
-
Certifications: IAPMO TS 4, TEI Listed, RVIA+ Certified
-
System Type: Gravity Fill / Vented (Do Not Pressurize)
-
Application: Fresh or Grey Water Storage
Vehicle & Application Compatibility
Compatible with virtually any RV or mobile platform, including:
-
Mercedes Sprinter
-
Ford Transit
-
Ram Promaster
-
Truck campers
-
Travel trailers
-
Box trucks
-
Tiny homes
-
Custom off-grid builds
Frequently Asked Questions
Can this be used for both fresh and grey water?
Yes. It is safe for potable water but can also be configured as a grey water tank.
Is this tank pressurizable?
No. This tank is designed for gravity-fill, vented systems only.
Does it come with fittings installed?
Yes. It includes standard 1/2" NPT and 1.5" NPT fittings for straightforward plumbing integration.
Can I drain it through the floor?
Yes. This tank is commonly configured to drain directly through the subfloor using a ball valve or connected to a secondary grey tank.
Compact, Certified, and Built for Van Life
The NW Conversions 10 Gallon Galley Water Tank is the ideal compact water storage solution for van conversions, RV builds, and mobile living projects. Its certified food-grade construction, flexible plumbing configuration, and space-efficient design make it a reliable choice for both professional upfitters and DIY builders.
