3 Gallon Reverse Osmosis Water Tank
Ensure your household always has access to pure, refreshing drinking water with the 3 Gallon Reverse Osmosis Water Tank from Filter United. Designed as a perfect replacement or upgrade for standard under-sink reverse osmosis systems, this storage tank safely holds your purified water and delivers it with consistent, reliable pressure the moment you turn on the faucet.
Its compact 3-gallon capacity offers an ideal footprint for tighter under-sink spaces while still providing plenty of ready-to-drink water for daily family use.
Couldn't load pickup availability
Share this product
Genuine VIVA21 Parts
Trusted Quality
Not all parts are created equal — and when it comes to your water, quality matters. Our genuine RO system parts are carefully selected to ensure a perfect fit, reliable performance, and long-lasting durability.
From fittings and tubing to faucets and housings, every component meets the strict standards from WQA Gold Seal NDS 58 & 372 certification for our full systems. With the right parts, you can maintain your system’s efficiency, protect your investment, and enjoy pure water with total confidence.
