Tank for Promaster 3500
Perfect 10/10
We are always striving for better space-saving ideas, and this undercarriage tank is just the ticket! This tank is designed to fit snugly around your Promaster’s framed undercarriage; these tanks are the perfect solution for your off-grid water requirements.
Composed of high-quality, BPA-free, food-grade approved linear low-density polyethylene, this tank can also function as freshwater storage. We've created a complete Freshwater Fittings Kit that includes everything you need to turn this tank into an undermount freshwater reservoir.
Complete your off-grid water management system by pairing this undermount tank with our 22 Gallon, or our 32 Gallon Promaster Wheel Well Water Tank. Worry less about water management, and spend more time adventuring!
Key Features & Benefits:
Dimensions & Specifications:
Designed for the Ram Promaster 159" & 159" extended wheelbases.
NOT COMPATIBLE with the 118" or 136" wheelbase.
The tank can only be mounted on the PASSENGER SIDE of your van.
However, your drain hose can be routed to your drivers side if needed.
Tanks are made from linear low-density polyethylene.
Food grade CSA approved and BPA free - safe for freshwater use!
15 US Gallons / 56.7 Litres
45.5" x 13 3/8" x 8" (Length x Width x Height)
1 x 1 ¼" fill port (on right side)
1 x ¾" drain port (on right side)
2 x ½" vent ports (on left side, top of humps)
1 x ½" vent port (on front end, top of hump)
1 x ½" optional water-pump port for freshwater use (on front end, bottom corner)
All ports are NPT female-threaded.
Grey Water Fittings Kit Add-On:
Fresh Water Fittings Kit Add-On:
STRAPPING NOT INCLUDED. We suggest using stainless-steel or galvanized steel-slotted strapping with 1/4" riv-nuts to secure the tank to your van's undercarriage. Only use corrosion-resistant strapping, as the strapping will be exposed to moisture.
More Information:
Wheel Well & Undermount Water Tank FAQ Sheet
Full Details of the Grey Water Fittings Kit Add-On
Select this add-on with your tank purchase and save $20 vs buying separately!
Full Details of the Fresh Water Fittings Kit Add-On
Select this add-on with your tank purchase and save $20 vs buying separately!
Items may be returned within 14 days of delivery. Must be unused, and in original packaging.
You are responsible for return shipping. Water tanks and batteries are subject to an $80 restocking fee.
Please ship your return to:
Curious Campervans
238 Hastings Ave
Penticton, BC, Canada, V2A 2V6
Email us at support@curiouscampervans.com when you are submitting a return, so we can watch out for your item. We will issue a refund, less restocking fee, once we receive the item back in resellable condition.