Best Water Tanks for Vans: Top 5 RV Fresh Water Tanks for on-the-Go Hydration
Finding the right water tank for a van involves considering capacity, fit, material safety, and how easy it is to install and service on the road. The following selections are among the most relevant options for campers, RVs, and van life setups. Each product below is designed to maximize space, provide durable potable water storage, and fit common van layouts. This guide highlights essential specs, installation notes, and practical differences to help you choose the best tank for your vehicle.
Summary Table of Chosen Products
| Product | Brand | Capacity | Key Fit/Use | Material |
|---|---|---|---|---|
| 20 Gallons | Non-standard wheel well integration, compact vans | BPA-free LLDPE | ||
| 40 Gallons | Truck/tractor/trailer hauling, portable | Translucent chemical-resistant poly | ||
| 36 Gallons | RV, motorhome, camper installations | BPA-free impact-resistant plastic | ||
| 19 Gallons | Compact RV and van setups, versatile fittings | BPA-free materials | ||
| 34 Gallons | Sprinter, cargo vans, conjoined with gray water options | NSF-approved materials |
TORVA 20 Gallon Fresh Water Tank
The TORVA 20 Gallon Fresh Water Tank is designed to maximize space by using the area over the wheel well. This compact, BPA-free water storage solution is tailored for small vans and Sprinter-type configurations. The tank’s material is a food-grade LLDPE, emphasizing safety for drinking water. A notable feature is its custom-fit approach for compact vehicles, including a 3.5-inch lift to align with popular van models. This makes installation simpler for van builders who want a reliable reservoir without compromising cabin space. The 20-gallon capacity provides a practical balance between weight, space, and on-the-road water needs.
Key considerations:
- Space-efficient design tailored for wheel-well areas
- Food-grade, BPA-free material helps ensure water safety
- Specialized fit for Sprinter and Transit, with Dodge ProMaster compatibility via lift
Chapin 98142 Water Storage Tank, 40-Gallon
The Chapin 98142 is a larger, 40-gallon translucent tank intended for more expansive water storage, particularly in trucks, trailers, or farm setups. It’s designed for easy transport and quick draining with a built-in 2-inch drain and a 3/4-inch garden-hose port. The UV-protected, chemical-resistant poly tank helps resist degradation under sun exposure and provides a clear view of water levels. This tank suits users who need substantial storage, quick drainage for maintenance, and a robust, weather-ready build for off-grid or semi-permanent installations.
Key considerations:
- Large 40-gallon capacity for extended trips
- UV-protected and chemical-resistant for outdoor use
- Built-in drain and hose port for efficient maintenance
Ameri-Kart 19 Gallon RV Fresh Water Tank
The Ameri-Kart 19-gallon RV water tank is a compact option suitable for smaller RVs or vans. Built from BPA-free materials, it supports potable water for drinking, cooking, cleaning, and more. It offers flexible installation with multiple fitting locations, including 1.5″ balloon-style NPT and 0.5″ NPT standards. The tank is designed to be durable and leak-proof, aligning with IAPMO standards for safety and hygiene. This model is ideal when you need reliable water storage in a tight space without sacrificing water quality.
Key considerations:
- Compact footprint with ample potable water capacity
- Flexible fittings for diverse installation layouts
- Made in USA from BPA-free materials and IAPMO-certified
Class A Customs 34 Gallon Tank
The Class A Customs 34 Gallon tank is designed for Sprinter cargo vans and campers, offering a practical balance between capacity and space. NSF-approved materials ensure water safety, and the tank is suitable for both fresh and potable water storage. The dimensions (42 inches long, 21 inches high, 13 inches wide) provide a good reference for fitting in vans with non-standard footprints. Built-in fittings include a 1.5″ NPT and three 0.5″ NPT ports, enabling flexible plumbing layouts for complex van builds.
Key considerations:
- Suitable for Sprinter and cargo van configurations
- NSF-approved materials for water safety
- Multiple built-in fittings for adaptable installation
Ameri-Kart 36 Gallon RV Fresh Water Tank
The Ameri-Kart 36-gallon tank provides a robust option for van or RV dwellers seeking a larger reservoir without sacrificing mounting space. It is manufactured in the USA from BPA-free materials and features dual 1.5″ balloon-style NPT fittings along with 0.5″ NPT fittings for versatile plumbing. The tank is built to withstand outdoor conditions and maintain sanitary water storage, meeting IAPMO standards. This model is well-suited for mid-to-large van builds that require a steady water supply for extended trips.
Key considerations:
- High capacity for longer trips with limited refill opportunities
- Durable, BPA-free construction and IAPMO-certified
- Multiple fitting options for flexible installation
Buying Guide: Key Purchase Considerations And Comparisons
To choose the right van water tank, weigh capacity against vehicle space, climate, and how you plan to use water on the road. Consider the following aspects:
- Capacity vs. vehicle weight and space: Larger tanks offer more water but add weight and may require structural considerations. For small vans, a 19–34 gallon range often provides a practical balance.
- Fit and installation: Look for tanks designed for van layouts, with wheel-well integration or adjustable mounting provisions. Check for pre‑drilled fittings and compatible port sizes to ease plumbing work.
- Safety and materials: BPA-free plastics and NSF/IAPMO certifications help ensure potable water safety and long-term durability under sun exposure and temperature changes.
- Portability and drainage: Consider whether easy draining, siphoning, or hose connections are important for maintenance, winterizing, or summer use.
- Maintenance: Access to lids and bulkhead fittings simplifies cleaning and inspection. UV protection and chemical resistance extend life in outdoor environments.
- Compatibility with van models: Some tanks are marketed as “custom-fit” for Sprinter, Transit, or ProMaster. Confirm actual dimensions and mounting clearances against your van’s layout.
Ultimately, the best tank depends on your travel style: compact, space-maximizing designs suit shorter trips and tight builds, while larger tanks are better for longer outings or family travel. Reading manufacturer dimensions, confirming fit with your van, and planning your plumbing layout ahead of time will help ensure a smooth installation and reliable water supply on the road.