Reverse Osmosis Water Tank – 4.5 Gallon RO Storage Tank, Under Sink Filtration System Replacement, Pre-Pressurized Steel Tank with Shut-Off Valve

Ensure a consistent supply of purified water with this 4.5-gallon nominal capacity reverse osmosis storage tank. Designed for under-sink RO systems, this tank provides approximately 3.0 gallons of usable filtered water, offering a reliable reserve for drinking and cooking. Constructed from durable, powder-coated steel with a corrosion-resistant internal liner, it’s built for long-term performance and longevity. The pre-pressurized design maintains consistent water flow to your RO faucet, eliminating the need for constant pump activation. Compatible with most standard RO systems utilizing 1/4” tubing connections, installation is straightforward and efficient. The integrated shut-off valve provides an added layer of control. Nominal vs Usable Capacity: The 4.5-gallon nominal capacity refers to the tank's total volume, while the usable capacity is approximately 3.0 gallons, factoring in the pre-charge pressure. This discrepancy is normal and ensures optimal system function. Dimensions: Approximately 15.75 inches in height and 11.25 inches in diameter. Weight: Approximately 13 lbs. Operating Pressure: 8-12 PSI. Material: Steel with internal polypropylene liner. Maximum Temperature: 120°F. Please note: Actual usable capacity can vary depending on incoming water pressure and overall system configuration. Regular inspection of connections is recommended to ensure leak-free operation and maintain water purity.

• 【Durable Steel Construction】: Crafted from robust steel with a powder-coated finish; provides superior corrosion resistance and long-lasting performance; designed to withstand consistent water pressure and daily use for years to come
• 【4.5 Gallon Nominal Capacity】: Offers a 4.5-gallon nominal capacity, providing approximately 3.0 gallons of usable filtered water; ensures a sufficient reserve of purified water for drinking, cooking, and other household needs; ideal for families and individuals
• 【Pre-Pressurized Design】: Features a pre-pressurized design at 8-12 PSI; delivers a consistent and stable water flow to your RO faucet; eliminates water hammer and extends the lifespan of your RO system components; suitable for varying water pressures
• 【Universal Compatibility】: Compatible with most standard under-sink reverse osmosis filtration systems utilizing 1/4” tubing connections; designed as a direct replacement for existing RO storage tanks; dimensions approximately 15.75" H x 11.25" D
• 【Integrated Shut-Off Valve】: Includes an integrated shut-off valve for easy maintenance and replacement; allows for convenient isolation of the tank during filter changes or system repairs; simplifies the overall RO system upkeep process; contributes to efficient water management