Choosing a reliable water tank for a truck camper ensures clean, safe potable water on the road. The following selections represent top-rated options designed for RVs, campers, and concession setups, with sizes ranging from compact 20 gallons to larger 57 gallons. Each product emphasizes BPA-free materials, built-in fittings, and durable, weather-resistant construction to stand up to RV travel and outdoor use.
style=”font-weight:bold;”>Summary Table Of Chosen Products
| Product | Brand | Capacity | Primary Use |
|---|---|---|---|
| 30 Gallon RV Fresh/Gray Water Tank | A.A | 30 Gallons | RV fresh or gray water storage |
| Ameri-Kart 36 Gallon Fresh Water Tank | Ameri-Kart | 36 Gallons | Potable water storage for RVs |
| Ameri-Kart 57 Gallon RV Fresh Water Tank | Ameri-Kart | 57 Gallons | Large-capacity potable water storage |
| Ameri-Kart 29 Gallon RV Fresh Water Tank | Ameri-Kart | 29 Gallons | Compact potable water storage |
| 20 Gallon RV Concession Fresh Water Tank | classAcustoms | 20 Gallons | Concession or portable RV use with pump kit |
30 Gallon RV Fresh/Gray Water Tank

This 30-gallon tank provides a compact solution for vehicle-based water storage. The unit measures 34″ x 18″ x 12″ (excluding fittings) and features a seamless construction to minimize leakage risks. Included fittings comprise a 1.25″ water fill inlet and three 3/8″ NPT connections. The tank is non-pressurized and must be vented, ensuring safe operation in variable travel conditions.
Designed for RV use, the tank’s seamless build reduces the chance of seams bursting under movement. The BPA-free material supports potable water safety for drinking, cooking, and cleaning tasks within limited space constraints. Installation versatility is supported by multiple inlet connections, though users should follow standard venting practices to maintain air flow during filling and dispensing.
Key considerations: verify mounting clearance in your camper, ensure compatible fittings for your hoses, and confirm venting norms for non-pressurized systems. This tank is well-suited for mid-size RVs seeking a reliable, space-efficient water reservoir without the complexity of a fully pressurized system.
Ameri-Kart 36 Gallon Fresh Water Tank

Ameri-Kart’s 36-gallon tank is designed for ease of installation and durable performance. Built from BPA-free materials, this tank is suitable for potable water storage used in RVs, trailers, campers, food trucks, and tiny houses. The design includes multiple fitting options: two 1.5″ balloon-style threaded female NPT fittings and two 0.5″ threaded female NPT fittings, facilitating flexible mounting layouts.
Durability is emphasized with weather-resistant plastics that resist impact and external exposure. The tank is described as sanitary and leak-proof to maintain water hygiene. It adheres to IAPMO standards, which can contribute to peace of mind for responsible RV owners who prioritize safety and regulatory compliance in their water systems.
Installation considerations include choosing a mounting location with accessible inlet/outlet points and ensuring compatible piping. The larger capacity relative to the 30-gallon option makes this model a strong choice for longer trips or households with higher water demands.
Ameri-Kart 57 Gallon RV Fresh Water Tank

The 57-gallon Ameri-Kart tank offers a substantial capacity for extended trips or sites with limited refill opportunities. This BPA-free reservoir is intended for potable water use, including cooking and showering, across RVs, motorhomes, trailers, campers, and food-related vehicles. Fittings include two 1.5″ balloon-style NPT standard connections and two 0.5″ NPT standard connections for installation flexibility.
Durability and hygiene are central features, with weather-resistant plastics designed to endure rugged travel. The tank is sanitary and leak-proof, and it meets IAPMO standards for reliability. For users planning longer camping seasons or larger water needs, this model provides a robust solution with straightforward compatibility for common RV plumbing layouts.
When selecting this tank, assess vehicle space, the distance to your water outlet, and whether your current pump and lines align with the stated fittings. Proper venting remains essential for non-pressurized systems to prevent pressure-related issues during fills.
Ameri-Kart 29 Gallon RV Fresh Water Tank

This 29-gallon tank balances capacity with compact dimensions for smaller campers or constrained spaces. It is made in the USA from BPA-free materials and is suitable for potable water storage, including drinking and cooking tasks. The tank features two 1.5″ balloon-style NPT fittings and two 0.5″ NPT fittings, offering flexible installation options.
Construction emphasizes durability and sanitary operation, with weather- and impact-resistant plastics designed to withstand RV use. It meets IAPMO standards to support safe water storage. The non-pressurized design requires venting, so plan venting routes during installation to avoid pressure buildup while filling or using the tank.
Ideal use scenarios include smaller RVs, food trucks, or concession setups where a modest water capacity is adequate, and easier installation is preferred. Verify your vehicle’s mounting dimensions and available space to ensure a proper fit with the stated fittings.
20 Gallon RV Concession Fresh Water Tank

Class A Customs presents a 20-gallon fresh water holding tank with a plumbing kit and a 12-volt water pump option. The tank is NSF-approved for safety and is suitable for fresh and drinking water storage in RVs, concession trailers, and mobile food units. Measurements indicate a flexible shape that can sit on any side, which supports varied installation approaches.
Fittings include two 1.5″ NPT connections and two 0.5″ NPT connections. The design is non-pressurized, requiring proper venting and gravity-based filling, rather than direct pressurized input, to avoid damage. Tanks can be rotated to adjust height and width as needed during installation. While adaptable, users should ensure compatibility with their pump kit and piping before purchase.
Buying Guide: Key Purchase Considerations And Comparisons
When selecting a truck camper water tank, consider capacity, mounting space, and how the tank integrates with your existing plumbing. The following factors help users compare options effectively:
- Capacity needs: Choose a tank size that matches your trip length, water usage, and refill opportunities. Higher capacity reduces frequent refills but requires more space.
- Material safety: Look for BPA-free plastics and NSF or IAPMO certifications to ensure potable water safety and compliance with standards.
- Fittings and compatibility: Review the number and size of built-in fittings. Ensure your hoses, pumps, and tanks align with 1.5″ or 0.5″ NPT configurations or plan to adapt with fittings.
- Ventilation and non-pressurized design: Most traveler tanks are non-pressurized and require venting. Verify venting requirements to prevent pressure buildup during operation.
- Installation flexibility: Tanks with multiple mounting orientations and adjustable dimensions offer easier installation in limited camper spaces.
- Durability: Look for weather-resistant plastics and seamless construction to minimize leaks and punctures during travel.
- Compliance: Check for IAPMO or equivalent certifications that indicate adherence to plumbing and safety standards.
By weighing capacity against space, confirming material safety, and ensuring fit with PTO and pump configurations, buyers can select a tank that balances practicality, safety, and reliability for truck camper use. Consider also the availability of replacement fittings and maintenance accessibility when planning a long-term RV water system.