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💧 Elevate your hydration game with the tank that means business!
The TankRo RO132-TNK is a 4-gallon reverse osmosis water storage tank crafted from durable steel with precision welding. Designed to fit under most kitchen sinks (15x12x12 inches), it delivers up to 3.2 gallons of pure, odorless, and tasteless water on demand. Engineered for everyday durability, it operates at pressures up to 100 PSI and features a sterile post-cured diaphragm and virgin polypropylene lining for safe water storage. Backed by a 1-year warranty, this tank is a reliable upgrade for any RO system seeking long-lasting performance and compact convenience.
| ASIN | B00Q798N8E |
| Best Sellers Rank | #17,481 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #33 in Under-Sink & Countertop Filtration |
| Brand | EXPRESS WATER |
| Brand Name | EXPRESS WATER |
| Capacity | 4 gallons |
| Container Type | Tank |
| Customer Reviews | 4.6 out of 5 stars 2,219 Reviews |
| Global Trade Identification Number | 00641990965834 |
| Included Components | 4-Gallon Water Storage Tank |
| Installation Type | Under Sink |
| Item Dimensions L x W x H | 15"L x 12"W x 12"H |
| Item Weight | 3.47 kg |
| LowerTemperature Range | 33 °F |
| Manufacture Year | 2022 |
| Manufacturer | Express Water |
| Material | Steel |
| Material Type | Steel |
| Maximum Flow Rate | 0.8 gpm |
| Model Name | V-RO132-TNK |
| Model Number | RO132-TNK |
| Number of Items | 1 |
| Number of Packs | 1 |
| Operating Pressure Range | 100 psi |
| Other Special Features of the Product | Durability |
| Part Number | V-RO132-TNK |
| Power Source | Adapter |
| Product Dimensions | 15"L x 12"W x 12"H |
| Purification Method | Reverse Osmosis |
| Special Feature | Durability |
| Supported Water TDS Level Maximum (PPM) | 500 |
| UPC | 641990965834 |
| Unit Count | 1 Count |
| Upper Temperature Rating | 100 °F |
| Warranty Description | 1-Year Warranty |
M**S
Good Quality
Worked perfectly for my reverse osmosis system.
C**L
Easy installation, though curious about the manufacture date
I received the product today (April 29, 2026) and the installation was very straightforward. It seems to be working fine so far. However, I noticed the serial number starts with 2509, which makes me think it was manufactured in 2025. Given that I ordered it in 2026, I assume this is within the normal distribution timeframe for this type of product. Overall, I'm satisfied with the purchase.
J**B
Fixed a saved my RO system.
Replacing just this saved me the cost of an entire new system.
N**4
Good quality tank
Note: THE TANK DOES NOT COME WITH A SHUT OFF VALVE THAT GOES AT THE TOP Good quality replacement for a good price. Amazon said it comes with a shut off valve, but it does not.
S**Y
Nice capacity, good price.
Good tank with high capacity (for an RO system). I installed one of these a while ago; not sure how long, and it eventually failed. I just bought two and installed them in parallel so my system would have more capacity. I used plastic connectors on the output so I didn't think I needed to use thread seal tape, but both leaked immediately. Added thread seal tape, and they sealed tight.
A**R
Works as advertised.
Works well.
S**E
Huge improvement in storage capacity for my system!
The product is a great replacement for a worn out or too small reservoir used in your reverse osmosis system. This replaced a smaller reservoir that was original to the system, and it makes a HUGE difference. Be sure to check the size of the tubing adapter of your current reservoir to make sure you get the correct fit.
C**I
Reverse osmosis tank replacement
Great tank for my reverse osmosis under the sink filter system works fantastic
A**A
Not as show in photos
I received different brand not same as show in photos. Without back stand and Different Fittings.
Trustpilot
3 weeks ago
2 weeks ago