---
product_id: 66564552
title: "GTS6 6-Gallon Reverse Osmosis Storage Tank (Color May Vary)"
brand: "tankro"
price: "$461.89"
currency: USD
in_stock: true
category: "Tank Ro"
url: https://www.desertcart.us/products/66564552-gts6-6-gallon-reverse-osmosis-storage-tank-color-may-vary
store_origin: US
region: United States of America
---

# 6-gallon capacity for on-demand water Durable deep-drawn steel dome with precision welding FDA food-grade, contaminant-free materials GTS6 6-Gallon Reverse Osmosis Storage Tank (Color May Vary)

**Brand:** tankro
**Price:** $461.89
**Availability:** ✅ In Stock

## Summary

> 💧 Elevate your hydration game with the GTS6 – pure, powerful, and perfectly compact!

## Quick Answers

- **What is this?** GTS6 6-Gallon Reverse Osmosis Storage Tank (Color May Vary) by tankro
- **How much does it cost?** $461.89 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/66564552-gts6-6-gallon-reverse-osmosis-storage-tank-color-may-vary)

## Best For

- tankro enthusiasts

## Why This Product

- Trusted tankro brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Compact Powerhouse:** Fits seamlessly under most kitchen sinks (15.35 x 11.42 x 11.42 inches) without sacrificing storage capacity.
- • **Peace of Mind Warranty:** Backed by rigorous testing and a 1-year warranty, designed to serve your hydration needs for over 5 years.
- • **Pure Hydration, Zero Compromise:** 100% food-grade, FDA-approved materials ensure every drop is tasteless and contaminant-free.
- • **Consistent Pressure, Instant Flow:** Airtight Chlorobutyl rubber bladder and sealed brass air nozzle maintain steady water pressure for your RO system.
- • **Built to Last, Designed to Perform:** Deep-drawn steel domes and epoxy-polyurethane coating resist damage indoors or outdoors.

## Overview

The GTS6 6-Gallon Reverse Osmosis Storage Tank is a compact, durable water storage solution made from 100% FDA food-grade materials. Designed to fit under most kitchen sinks, it stores up to 4.4 gallons of purified water with consistent pressure thanks to its airtight Chlorobutyl rubber bladder and precision-welded deep-drawn steel dome. Coated for extra durability and backed by a 1-year warranty, this tank ensures contaminant-free, tasteless water for over five years, making it an essential upgrade for any RO water system.

## Description

Heavy Duty Construction -All Materials in the expansion tank are 100% food safe and FDA grade to make sure your water is tasteless, odorless, and contaminant free. -The inside of the RO water tank is completely smooth to prevent damage to the bladder. -The water storage tank is coated with a two-part epoxy primer and finished with polyurethane to resist damage even in the outdoors. -The adjustable bladder within the water tank is made of high grade Chlorobutyl rubber and is completely airtight. -The inside liner of the water filter tank is made of Virgin Polypropylene, the most durable liner even on a molecular level. All the Water You Need A 6-gallon water pressure tank can hold 4.4 gallons of water. All tanks have a certain amount of their capacity used by the air bladder, which is necessary for drawing water from the water reservoir tank. Be Confident All components are high quality food-grade -Each RO tank passes extensive durability testing. -A sealed brass air nozzle and o-ring sealed air valve caps means consistent air pressure -This reverse osmosis tank is designed to last over five years.

## Features

- Reverse Osmosis Tank: Made from 100% food grade materials, this RO water tank stores and keeps your water free from any impurities and harsh chemicals. The perfect addition to any RO water system.
- Durable Water Storage Tank: This RO water tank is rigorously tested for quality and durability and includes a 1-year warranty.
- High Quality Water Tank: This water storage tank is made from durable deep-drawn steel domes with precision welding to ensure long lasting value for your RO water system..
- Water Tank Dimensions: This compact water tank is designed (15.35 x 11.42 x 11.42) to fit under most kitchen sinks. Stores up to 4.4 gallons of water for on-demand filtered drinking water.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B079Z19PP8 |
| Best Sellers Rank | #104,010 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #173 in Under-Sink & Countertop Filtration |
| Brand | tankRo |
| Brand Name | tankRo |
| Capacity | 6 gallons |
| Container Type | Bottle |
| Customer Reviews | 4.5 out of 5 stars 1,415 Reviews |
| Included Components | Reverse Osmosis Water Storage Pressure Tank |
| Installation Type | Under Sink |
| Item Dimensions L x W x H | 11.42"L x 11.42"W x 15.35"H |
| Item Highlight | Compact, Maintains Steady Water Pressure for RO Systems, Deep-Drawn Steel Domes, Quick-Connect Installation |
| Item Type Name | Compact Reverse Osmosis Water Storage Pressure Tank |
| LowerTemperature Range | 33 °F |
| Manufacturer | tankRo |
| Material | Polypropylene |
| Material Type | Polypropylene |
| Model Name | GTS6 |
| Model Number | GTS6 |
| Number of Items | 1 |
| Number of Packs | 1 |
| Operating Pressure Range | 5-100 psi |
| Other Special Features of the Product | Durable |
| Part Number | GTS6 |
| Power Source | Manual |
| Product Dimensions | 11.42"L x 11.42"W x 15.35"H |
| Purification Method | Reverse Osmosis |
| Special Feature | Durable |
| Supported Water TDS Level Maximum (PPM) | 50 |
| UPC | 653590999294 |
| Unit Count | 1 Count |
| Upper Temperature Rating | 212 °F |

## Product Details

- **Brand:** tankRo
- **Capacity:** 6 gallons
- **Included Components:** Reverse Osmosis Water Storage Pressure Tank
- **Installation Type:** Under Sink
- **Material:** Polypropylene
- **Package Information:** Bottle
- **Power Source:** Manual
- **Product Dimensions:** 11.42"L x 11.42"W x 15.35"H
- **Purification Method:** Reverse Osmosis
- **Special Feature:** Durable

## Images

![GTS6 6-Gallon Reverse Osmosis Storage Tank (Color May Vary) - Image 1](https://m.media-amazon.com/images/I/51ZN1xtjcmL.jpg)
![GTS6 6-Gallon Reverse Osmosis Storage Tank (Color May Vary) - Image 2](https://m.media-amazon.com/images/I/61aXkbG3zJL.jpg)
![GTS6 6-Gallon Reverse Osmosis Storage Tank (Color May Vary) - Image 3](https://m.media-amazon.com/images/I/61Id0CC80fL.jpg)
![GTS6 6-Gallon Reverse Osmosis Storage Tank (Color May Vary) - Image 4](https://m.media-amazon.com/images/I/71Nf4q0eE0L.jpg)

## Available Options

This product comes in different **Size** options.

## Questions & Answers

**Q: Is this tank precharged?**
A: Yes, the tank arrived pre-charged @ 10 psi.

**Q: How mich psi will a tank this size put out? My small 3 gallon tank does not put out eniugh psi to get water out of my fridge. Wondering if psi out of**
A: In an empty tank, air pressure should be 7-10 psi. In a full/heavy tank, air pressure should be 30-40 psi. To be accurate, air pressure should be 2/3 of incoming water pressure. When the tank is full, and if feed water pressure to the RO system is 60 psi, then a full tank should have 40 psi.

**Q: how much air pressure should come in the tank?  Only getting 1.5 gallons of water there is 19.5psi of air in tank.**
A: if you are at 19.5 psi when it is empty, then you have too much air pressure.  Try lowering the bladder temperature to between 7 and 10.  Many RO systems only output about 20 psi

**Q: How long should it take for the tank to reach full capacity at an empty psi of 10?**
A: I have my water pressure regulator to my house set at 70 psi. And my 5 stage reverse osmosis system produces about 1 gallon of water every 2 hours +/- .  There are several factors to take into consideration to determine water output. Yours may or may not produce similar results. But if your system produces similar results then it will take approximately 9 hours to fill the tank completely since The tank holds about 4 1/2 gallons max.

## Frequently Bought Together

- tankRO – RO Water Filtration System Expansion Tank – 6 Gallon Water Tank -– Compact Reverse Osmosis Water Storage Pressure Tank with Free 1/4" Tank Ball Valve
- Malida 1/4 inch O.D. Length 32.8ft(10 meters) RO Water Tubing, Hose Pipe for RO Water purifiers System,+ 1/4 O.D quick connector 10pcs
- Lemoy 1/4" OD Quick Connect Push In to Connect Water Tube Fitting for RO Reverse Osmosis Water Filter Fittings Pack of 30

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-11-13*