Choosing a reliable fresh water holding tank is essential for comfortable RV or camper living. This guide highlights top-rated options, focusing on NSF-approved materials, durability, and compatibility with fresh or gray water. Explore five well-reviewed tanks from Class A Customs and Ameri-Kart, with practical design features to fit various RV layouts and installation preferences.
| Product | Capacity | Brand | Notes |
|---|---|---|---|
| Class A Customs T-5500 | 55 Gallon | classAcustoms | NSF approved, fresh or gray water, built-in fittings |
| Class A Customs T-5000 | 50 Gallon | classAcustoms | NSF approved, flexible mounting, built-in fittings |
| Class A Customs T-6500 | 65 Gallon | classAcustoms | NSF approved, versatile positioning, fittings included |
| Ameri-Kart 29 Gallon | 29 Gallon | Ameri-Kart | Potable water, multiple install options, BPA-free |
| Ameri-Kart 20 Gallon | 20 Gallon | Ameri-Kart | Potable water, versatile fittings, BPA-free |
Class A Customs T-5500: 55 Gallon Fresh Water Tank
The T-5500 is a 55-gallon tank designed for RV use, suitable for fresh or gray water. It is manufactured with NSF-approved materials and is safe for drinking water. The tank measures approximately 37.5″ in length (excluding fittings) with a 7/32″ average thickness, and can be positioned on any side by rotating. Built-in fittings include two 1.5″ and two 0.5″ NPT ports, sealed to prevent leaks. Follow photos for exact dimensions and allow for minor manufacturing variances of ±0.25″.
Class A Customs T-5000: 50 Gallon Fresh Water Tank
The T-5000 offers 50 gallons of fresh or gray water storage with NSF-approved materials suitable for drinking water. The tank’s dimensions are about 38.25″ long (not including fittings) by 14.25″ wide and 22.25″ tall, and it can sit on any side. It includes two 1.5″ female NPT fittings and two 0.5″ fittings, designed to remain watertight when sealed. As with other Class A Customs products, expect minor dimensional variations and use plastic fittings to protect threads.
Class A Customs T-6500: 65 Gallon RV Fresh Water Tank
The 65-gallon option from Class A Customs provides ample capacity for longer trips. It uses NSF-approved materials and is safe for fresh or drinking water. Tank dimensions are roughly 44.5″ long (excluding fittings) by 17.5″ wide and 19.5″ tall, with rotation capability to adapt height or width. Dual 1.5″ and dual 0.5″ fittings are included; keep fittings watertight by following the included installation guidance and avoid over-tightening threaded connections to prevent damage.
Ameri-Kart 29 Gallon RV Fresh Water Tank
The 29-gallon Ameri-Kart tank is built in the USA from BPA-free materials and intended for potable water use in RVs, motor homes, and trailers. It features multiple installation options thanks to built-in fittings, including two 1.5″ and two 0.5″ NPT ports. The tank materials are designed for weather resistance and durability, with a sanitary, leak-proof design meeting IAPMO standards. This configuration makes it suitable for fresh water storage in a variety of RV layouts.
Ameri-Kart 19 Gallon RV Fresh Water Tank
The 19-gallon Ameri-Kart tank is designed for potable water and RV use, offering BPA-free construction and multiple fitting positions for flexible installation. It includes two 1.5″ balloon-style NPT female fittings and two 0.5″ fittings, with durability suited for weather and impact resistance. The tank is sanitary and leak-proof, aligning with IAPMO standards for safe water storage in RVs and small living spaces.
Fresh Gray Water Holding Tank Combo (16 & 21 Gallon)
This pair includes a 16-gallon and a 21-gallon tank, designed for fresh and gray water storage. Constructed from rotational molded polyethylene, these tanks are one-piece seamless units to minimize leaks. The larger 21-gallon tank provides extended capacity, while the 16-gallon option offers flexibility in compact installations. Both are intended for durable RV use and come with standard fittings to facilitate mounting and connection.
RecPro Fresh & Gray Water Tank Combo Pack
RecPro’s USA-made tanks are designed for both fresh and gray water, with a pressure-tested build to ensure reliable operation. This combo pack is suitable for concession or food truck setups and other mobile configurations, providing tested performance and compatibility for hybrid storage needs. Ensure cleaning prior to first use as part of standard best practices for water systems.
Buying Guide: Key Considerations For Fresh Water Holding Tanks
- Capacity needs: Match tank size to your typical travel duration, water usage, and available mounting space. Consider whether you need only fresh water storage or the ability to store gray water as well.
- Material and safety: Look for NSF approval and BPA-free plastics to ensure water remains safe for drinking, cooking, and cleaning.
- Fittings and connections: Verify built-in fittings (NPT sizes, compatibility with common RV hoses and fittings) and the ease of sealing connections to prevent leaks.
- Dimensions and orientation: Check length, width, height, and whether the tank can be rotated to fit tight spaces or adapt mounting orientation.
- Installation options: Some tanks offer multiple mounting positions, which is helpful for varied RV layouts; ensure you have access to the necessary tools for installation.
- Durability and care: Rotational molded and sturdy construction reduces the risk of seams and leaks; plan for regular inspection and cleaning to maintain water quality.
- Maintenance considerations: If the tank stores gray water, ensure color-coded or clearly labeled piping, and consider venting and drainage requirements specific to your RV model.
- Warranty and support: Look for clear manufacturer guidance on installation, usage limits, and possible replacement fittings or parts.