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💧 Elevate your hydration game with pure, pressure-perfect water storage!
The Express Water RO Expansion Tank is a compact, 4-gallon NSF certified storage tank designed for reverse osmosis systems. Crafted from food-grade materials and durable steel, it ensures safe, contaminant-free water with a post-cured diaphragm and pre-pressurized air bladder for consistent flow. Easy to install with a free ball valve and built to fit under most kitchen sinks, this tank offers reliable, long-lasting performance backed by a 1-year warranty.









| ASIN | B00Q798N8E |
| Best Sellers Rank | #145,654 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #318 in Under-Sink Water Filters |
| Brand Name | Express Water |
| Capacity | 4 gallons |
| Container Type | Dispenser |
| Customer Reviews | 4.6 4.6 out of 5 stars (2,152) |
| Global Trade Identification Number | 00641990965834 |
| Included Components | Tank Ball Valve, Tank Stand |
| Installation Type | Under Sink |
| Item Dimensions L x W x H | 38.1L x 30.5W x 30.5H centimeters |
| Item Weight | 3.47 Kilograms |
| LowerTemperature Range | 33 Degrees Fahrenheit |
| Manufacture Year | 2022 |
| Manufacturer | Express Water Inc |
| Material Type | Alloy Steel, Polypropylene, Polyurethane |
| Maximum Flow Rate | 0.8 Gallons Per Minute |
| Model Name | RO132-TNK |
| Model Number | RO132-TNK |
| Number of Items | 1 |
| Number of Packs | 1 |
| Other Special Features of the Product | NSF certified |
| Part Number | V-RO132-TNK |
| Power Source | Water Pressure |
| Purification Method | Reverse Osmosis |
| Supported Water TDS Level Maximum (PPM) | 1000 |
| UPC | 641990965834 |
| Unit Count | 1 Count |
| Upper Temperature Rating | 100 Degrees Fahrenheit |
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