















💧 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 with a durable steel body and precision welding, it ensures contaminant-free water storage. Featuring a free quick-connect ball valve and a pre-pressurized air bladder, it delivers smooth, on-demand filtered water with reliable pressure up to 100 PSI. Backed by a 1-year warranty, this tank combines longevity with easy installation for a premium RO system upgrade.









| ASIN | B00Q798N8E |
| Best Sellers Rank | #168,488 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #358 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.
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**.
This was a simple installation and I liked the price. RO is now working again. I had little to no pressure and replacing the tank fixed my issue.
K**G
Tanks is much larger than original would rather have smaller.
Trustpilot
1 month ago
3 days ago