








💧 Elevate your hydration game with pure, pressurized perfection!
The Express Water Ro Expansion Tank is a compact, NSF-certified 4-gallon reverse osmosis storage tank designed for under-sink installation. Made from 100% food-grade materials and durable steel with precision welding, it ensures contaminant-free water storage with a 3.2-gallon capacity. Featuring a free 1/4" quick connect ball valve and a robust build rated for 100 PSI, this tank offers easy installation, long-lasting durability, and reliable performance backed by a 1-year warranty.









| ASIN | B00Q798N8E |
| Best Sellers Rank | #176,757 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #375 in Under-Sink Water Filters |
| Item model number | RO132-TNK |
| Manufacturer | Express Water Inc |
| Product Dimensions | 38.1 x 30.48 x 30.48 cm; 3.47 kg |
A**A
Not as show in photos
I received different brand not same as show in photos. Without back stand and Different Fittings.
D**N
Great item. Company easy to work with
N**9
Works great, even better than the original glacier bay that came with my RO system.
W**W
Simple hookup. Works great! Eliminated pulsing (on/off) of a tankless/pumped RO water filter system connected to fridge and coffee maker. Now I have good pressure at every fixture served by RO water filter system
A**R
As advertised. Worked great for my home RO system
J**N
My old tank gave up the ghost and I could only get a few cups of water out of my water filter each time I used it so after doing some research, it turned out that I needed to replace the tank. Installation was easy. I could taste a bot of something in my water for a couple of weeks but it went away. I may have needed to fully let the tank fill and then empty more than once but I'm apparently too lazy to do that. Now that the flavor issue has cleared up, I'm perfectly happy with it. For reference, the first water filter that I tried years ago had a tank that made it seem like the water was bottled by Goodyear (strong rubber taste). That wasn't the case with this one. I could taste something in the water but it wasn't sufficiently strong enough to motivate me to actually do something about it.
Trustpilot
3 weeks ago
4 days ago