SKU: 65888202840

Transit Undermount Water Tank (10 Gallon)

Sale price$112.95 Regular price$125.50
Save 10%

Pay in installments of $31.38 with ShopPay, AfterPay and Klarna

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Aug 23 - Aug 28

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

Description

Transit Undermount Water Tank (10 Gallon)This undercarriage tank is designed to fit snugly under the passenger or driver side of your Transit's framed undercarriage; these tanks are the perfect solution for managing your water while relaxing at the campsite! This tank was designed with versatility in mind! Use this tank for grey water management, or, bundle this tank with our Freshwater Fittings Kit and use it for freshwater storage under your van, or in your vans interior. Rest easy knowing

This undercarriage tank is designed to fit snugly under the passenger or driver side of your Transit's framed undercarriage; these tanks are the perfect solution for managing your water while relaxing at the campsite!

This tank was designed with versatility in mind! Use this tank for grey water management, or, bundle this tank with our Freshwater Fittings Kit and use it for freshwater storage under your van, or in your vans interior. Rest easy knowing this tank is food-grade CSA certified and BPA-free.

Looking for more volume? Check out our 17 Gallon Transit Undermount Water Tank!

Do you want to spend more time at the campsite and less time searching for water fill-up stations? Bundle your undermount tank with our custom-made 29 Gallon Transit Wheel Well Water Tank! Have a dually? No problem! Check out our 32G Gallon Transit Dually Wheel Well Water Tank!

Key Features & Benefits: 

  • Save Space - Mount underneath your van chassis for extra storage room inside your van - passenger or driver side.
  • Perfect Fit - Designed to fit perfectly under the Transit van, simply position the tank and attach with strapping, no need to make modifications.
  • Durable Design - This tank is tough; rest assured knowing your tank will hold up to exposure and the elements.
  • Multi-Purpose - Use this undermount tank for grey water storage, or bundle it with our Freshwater Fittings Kit to turn this tank into a freshwater reservoir; option to mount in your van's interior, as a freshwater tank. 
  • BPA-Free and Food Grade Approved - These tanks are CSA approved and food grade certified for safe drinking water.
  • Fittings Kit Add-On Available - Save yourself the headache and multiple trips to the plumbing store when you bundle this tank with our Grey Water Fittings Kit or Fresh Water Fittings Kit!
  • Strapping Kit Add-On Available - Weather-resistant strapping crafted from heavy-duty 1/8" thick, 1 1/2" wide aluminum. Simple and secure! 
  • Water Level Sender & Gauge Kit Add-On Available - This water tank has a fitting specifically designed for use with the KUS S5U Water Level Sender!
  • Compatible - This tank pairs well with our 29 Gallon Transit Wheel Well Water Tank, or with our 32G Gallon Transit Dually Wheel Well Water Tank!

Dimensions & Specifications:

Designed for the Ford Transit, all wheelbases.
Compatible as an interior water tank, for any van. 

This tank can be mounted on the PASSENGER SIDE or DRIVER SIDE of your van. PLEASE NOTE that our Aluminum strapping kit is compatible with the PASSENGER SIDE ONLY. If you want to mount this tank on the driver side, we suggest using Aluminum 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. Alternatively, please check out our Transit 17 Gallon Undermount Water Tank and strapping kit which is designed for the driver side. 

The end of the tank with the 4x fittings (1 x 1 ¼", 1 x ¾", and 2 x ½") usually faces the rear of van, but the tank can be faced in either direction

Tanks are made from linear low-density polyethylene.
Food grade CSA approved and BPA free - safe for freshwater use!

10.43 Gallons / 39.4 Litres

36" x 9.5" x 8" (Length x Width x Height)

1 x 1 ½” drill-out membrane port (on top)
1 x 1 ¼" 
drill-out membrane port (on top)
1 x 1 ¼" drill-out membrane port (on ONE end)
1 x ¾" port (on ONE end)
2 x ½" ports (on ONE end)

The larger 1 ½”  and 1 ¼" ports are "membrane ports", which require drill-out for use.
The membrane eliminates the need to plug the ports if you don't use them.

All ports are NPT female-threaded.

Grey Water Fittings Kit Add-On:

  • 1x 1 ¼" PVC 90
  • 2x ¾" PVC 90
  • 1x ¾" PVC Ball Valve
  • 1x ¾" Nipple - 6" long
  • 1x ¾" Nipple - 4" long
  • 1x ¾" Nipple - 1 ½" long
  • 1x ½" Poly Adaptors
  • 1x ½" Poly Elbow
  • 1x ½" PVC Plug
  • 2x #20 Hose Clamps
  • 1x #8 Hose Clamps
  • 1x Roll of Teflon Tape
  • 5ft Fill Hose
  • 2ft ⅝" ID Vinyl Hose

Fresh Water Fittings Kit Add-On:

  • 1x 1 ¼" PVC 90
  • 2x ¾" PVC 90
  • 1x ¾" PVC Ball Valve
  • 1x ¾" Nipple - 6" long
  • 1x ¾" Nipple - 4" long
  • 1x ¾" Nipple - 1 ½" long
  • 1x ½" Poly Adaptor
  • 2x ½" Poly Elbows
  • 2x #20 Hose Clamps
  • 2x #8 Hose Clamps
  • 1x Roll of Teflon Tape
  • 1x Fill Port
  • 5ft Fill Hose
  • 5ft ⅝" ID Vinyl Hose

    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 $$ vs buying separately!

    Full Details of the Fresh Water Fittings Kit Add-On
    Select this add-on with your tank purchase and save $$ vs buying separately!

    Full Details of the Aluminum Strapping Kit Add-On
    Select this add-on with your tank purchase and save $$ vs buying separately!

    Check out our Transit Undermount Water Tank (17 Gallon)

    Check out our Transit Wheel Well Water Tank (29 Gallon)

    Install Instructions:

    Freshwater Fittings Kit Install Instruction
    Grey Water Fittings Kit Install Instruction
    Strapping Kit Install Instructions for Transit 10 Gallon Water Tank (Passenger Side)

    Shipping Notes
    • Free Standard Shipping on $100+ Orders to the USA.
    • Except Preorder products are shipped in 48 hours.
    • Delivery to the USA:
    1. Standard Shipping : 3-10 business days
    • If time is of the essence, please consider selecting expedited delivery for faster service.
    Exchange/Return Notes
    • We offer a 30-day return/exchange service after receiving.
    • Final sale items are not eligible for returns or exchanges.
    • To process your return/exchange, please contact us at [email protected]
    • Please click here for more details>>> Return & Exchange Policy
    SKU: 65888202840

    Discover Niche Categories That Outsell

    Top-Converting Item to Boost Your Average Order

    4.7 ★★★★★
    Based on 14 reviews
    Sort
    Highest Rating
    Newest First
    Oldest First
    Product Reviews
    M
    Verified Purchase
    mona najajreh
    Boise, US
    ★★★★★ 5
    Finally found the perfect backpack!
    Color: Apricot, Size: 17.3 Inch
    I’ve been searching for a backpack that could fit my 16-inch laptop and my other uni stuff since i commute, without looking huge on me, I’m a small girl, so most big backpacks just look bulky and awkward. I wanted something slim and sleek, not one of those backpacks that stick out and have that “belly” shape. After a lot of searching, I finally found this one, and I absolutely love it! The material feels really high quality, and the design is just perfect. I got the 17-inch size, and it fits my 16-inch laptop comfortably. There are so many pockets for organization, plus a separate padded compartment just for the laptop, which I really appreciate. It also has a handle that easily slides over my suitcase handle, which is so convenient for traveling (I travel a lot, so this feature was a must). It’s comfortable to wear, the straps are adjustable, there are bottle holders on both sides, and overall it just looks clean and stylish. i got the beige color one. which i love. I’m really happy with this purchase it has everything I was looking for. I’ll attach a short video showing all the pockets and features because it honestly deserves it!
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on November 10, 2025
    J
    Verified Purchase
    JW
    Port Orchard, US
    ★★★★★ 5
    Perfect and not bulky
    Color: Apricot, Size: 17.3 Inch
    Love this slim backpack, plenty of room for my laptop and so much more. Lots of zipper and mesh pockets. I like the separate compartments for the laptop. It’s well designed and very functional. I wanted something that was not bulky and this fit the bill, it’s really great. The material is nice and easy to keep clean. Seems well made, I’ll update down the road if that changes. I recommend this backpack.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on January 30, 2026
    E
    Verified Purchase
    Essence
    Belleville, US
    ★★★★★ 5
    Perfect work travel bag!
    Color: Black, Size: 14 Inch
    Perfect work bag! I was looking for something for a petite frame. Can fit a lot in it, worth the money, love all of the pockets. Can carry two ways - either with handles or wear on back like a backpack
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on February 28, 2026
    S
    Verified Purchase
    Shelby C.
    Belleville, US
    ★★★★★ 5
    Perfect backpack to use as a purse
    Color: Champagne Brown, Size: 14 Inch, Color: Champagne Brown, Size: 14 Inch
    I LOVE THIS BACKPACK! It's perfect as an EDC backpack used in lieu as a purse. It's small enough to use daily and to keep basic necessities in. It has a main compartment, a basic compartment for a laptop or iPad, and a small front pocket. There is a small area that closes with a snap where the handle comes out of that can be used for storage as well. I like to keep my sunglasses or vape in it. I like to wear a backpack when shopping, it makes it easier to have my hands and arms free and I also don't have to worry about my purse in a cart and someone dipping into it when I'm not looking. While I like to wear a backpack, I don't need an ACTUAL backpack used to carry large objects and this fits the bill. I'm able to fit my wallet, phone, 10" iPad, journal, tech kit, small makeup bag, keys, glasses, gum, coin purse, misc. pouch in it and it still has room at the top. The quality is excellent, as all Golf Bags are. The color is a beautiful neutral medium taupe (I got the light brown/cappuccino? color) but I would love this bag in black, blue, and beige! The blue color is such a pretty blue!
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on August 6, 2025
    E
    Verified Purchase
    Elombi
    Louisville, US
    ★★★★★ 4
    Good for office and school.
    Color: Black, Size: 16 Inch, Color: Black, Size: 16 Inch
    Looks good and it's lightweight. Soft material for the design. Storage is ok, could be better with softer cushions and a strong cover material. Zipper is sturdy so far. Versatile. Cons: Has no strap to keep laptop in place. Laptop cushion not thick enough.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on January 11, 2026

    recommand products