Max Water NSF Heavy Duty 4.4 Gal RO Storage Tank - 100 PSI (PA-E RO-132 + Valve)

Discover the Max Water NSF Certified Heavy Duty 4.4 Gallon RO storage tank, built to support reliable filtration at home or in small setups. Paired with the PA-E RO-132 valve, this tank stores filtered water and blends with RO systems, pump tanks, and thermal tanks with a compact footprint.

Durability and trusted design

From the first installation, you will notice the focus on longevity. The tank handles up to 100 PSI, a common target for residential RO applications. A smooth internal air vent cap helps prevent diaphragm damage during pressure cycles, contributing to calmer operation. The unit ships pre charged at 6 PSI for quick setup.

• 100 PSI maximum working pressure supports robust storage when the RO system cycles on and off
• Smooth vent cap minimizes wear on diaphragms and extends service life
• 6 PSI pre charge reduces setup time and ensures immediate performance

Versatile connections and wide compatibility

Designed for a 1/4 inch stainless steel connection, this tank is ready to join a range of filtration configurations. It suits RO water storage tanks, pump tanks, and thermal tanks without complex adapters, helping you keep a neat filtration corner.

• 1/4 inch stainless connection supports secure, corrosion resistant links
• Great for RO storage, pump tanks and thermal tanks in compact spaces

Capacity, footprint, and fit

With a capacity of about 4.4 gallons at 100 PSI and 3.2 gallons at 60 PSI, the tank offers a practical buffer for daily consumption. Its dimensions of approximately 14 inches tall and 11 inches in diameter fit under most sinks and small utility closets.

• 4.4 gallon capacity at 100 PSI for reliable storage
• 3.2 gallon capacity at 60 PSI for efficient cycling
• Compact 14-inch height and 11-inch diameter for tight spaces

Quality you can rely on

Max Water brings 15 plus years of filtration experience to every tank. The product line emphasizes quality testing and NSF certification to provide consistent performance you can evaluate based on your system needs.

• NSF certified for quality standards
• Quality tested to meet customer expectations
• Proven track record from a long standing brand

Real world use cases and everyday benefits

In daily use, the tank acts as a dependable reservoir that smooths the supply between RO production and household demand. It is useful for backup storage during high demand periods and can help reduce rapid cycling in busy households, contributing to smoother operation without promises of results. Consider it as a practical companion to your filtration setup.