---
product_id: 66564551
title: "GTS3, 3 Gallon RO Water Filtration System Expansion Tank, Compact Reverse Osmosis Water Storage Pressure Tank"
brand: "tankro"
price: "799.69 DT"
currency: TND
in_stock: true
category: "Tank Ro"
url: https://www.desertcart.tn/products/66564551-gts3-3-gallon-ro-water-filtration-system-expansion-tank-compact
store_origin: TN
region: Tunisia
---

# 3 Gallon capacity for ample filtered water 1/4” quick connect valve for effortless installation Durable deep-drawn steel with precision welding GTS3, 3 Gallon RO Water Filtration System Expansion Tank, Compact Reverse Osmosis Water Storage Pressure Tank

**Brand:** tankro
**Price:** 799.69 DT
**Availability:** ✅ In Stock

## Summary

> 💧 Elevate your hydration game with the GTS3 – because clean water waits for no one!

## Quick Answers

- **What is this?** GTS3, 3 Gallon RO Water Filtration System Expansion Tank, Compact Reverse Osmosis Water Storage Pressure Tank by tankro
- **How much does it cost?** 799.69 DT with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/66564551-gts3-3-gallon-ro-water-filtration-system-expansion-tank-compact)

## 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

- • **Plug & Play Setup:** Includes a free tank ball valve with a 1/4” quick connect design for hassle-free installation and replacement.
- • **Compact Powerhouse:** Slim 14 x 9 x 9 inch design fits seamlessly under most kitchen sinks without sacrificing storage capacity.
- • **Peace of Mind Warranty:** Backed by a 1-year warranty and rigorous quality testing, so you never worry about your water supply.
- • **Built to Last, Built for You:** Crafted from BPA-free, food-grade materials and rugged steel domes to ensure long-term durability and safety.
- • **Pure Hydration, Always Ready:** Stores up to 3 gallons of crystal-clear RO water for instant access to clean drinking water.

## Overview

The GTS3 is a compact 3-gallon reverse osmosis expansion tank made from 100% food-grade, BPA-free materials and durable steel. Designed for easy under-sink installation with a free quick-connect ball valve, it ensures on-demand access to purified water. Its precision welding and rigorous testing guarantee long-lasting performance, backed by a 1-year warranty.

## Description

tankRo 3 Gallon RO Expansion Tank – Compact Reverse Osmosis Water Storage Pressure Tank with Free Tank Ball Valve - desertcart.com

## 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.
- Easy to Install Water Tank: RO tank replacements include free tank ball valve for easy set-up and replacement with 1⁄4” quick connect design.
- 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 (14 x 9 x 9) to fit under most kitchen sinks. Stores up to 2.2 gallons of water for on-demand filtered drinking water.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B079YZ8THK |
| Best Sellers Rank | #38,230 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #59 in Under-Sink & Countertop Filtration |
| Brand Name | tankRo |
| Capacity | 3 Gallons |
| Container Type | Tank |
| Customer Reviews | 4.5 4.5 out of 5 stars (1,379) |
| Included Components | Tank |
| Installation Type | Under Sink |
| Item Dimensions L x W x H | 9"L x 9"W x 14"H |
| Manufacturer | tankRo |
| Material Type | BPA Free |
| Model Name | GTS3 |
| Model Number | GTS3 |
| Other Special Features of the Product | Durable |
| Part Number | GTS3 |
| Power Source | Adapter |
| Purification Method | Reverse Osmosis |
| Smart Home Compatibility | Not Smart Home Compatible |
| Supported Water TDS Level Maximum (PPM) | 2000 |
| UPC | 653590999287 |
| Unit Count | 1 Count |
| Upper Temperature Rating | 100 Degrees Fahrenheit |

## Product Details

- **Brand:** tankRo
- **Capacity:** 3 Gallons
- **Included Components:** Tank
- **Installation Type:** Under Sink
- **Material:** BPA Free
- **Package Information:** Tank
- **Power Source:** Adapter
- **Product Dimensions:** 9"L x 9"W x 14"H
- **Purification Method:** Reverse Osmosis
- **Special Feature:** Durable

## Images

![GTS3, 3 Gallon RO Water Filtration System Expansion Tank, Compact Reverse Osmosis Water Storage Pressure Tank - Image 1](https://m.media-amazon.com/images/I/61ttQ1+cTAL.jpg)

## Available Options

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

## Frequently Bought Together

- TankRO - RO Water Filtration System Expansion Tank - 3 Gallon Compact Reverse Osmosis Water Storage Pressure Tank With Free 1/4" Ball Valve
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- John Guest 3/8 Inch O.D. Tube Size x 1/4 Inch NPTF Speedfit to Female Shut Off Valve, Push to Connect Plastic Plumbing Fitting, PPSV501222WP

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**Shop now:** [https://www.desertcart.tn/products/66564551-gts3-3-gallon-ro-water-filtration-system-expansion-tank-compact](https://www.desertcart.tn/products/66564551-gts3-3-gallon-ro-water-filtration-system-expansion-tank-compact)

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*Product available on Desertcart Tunisia*
*Store origin: TN*
*Last updated: 2026-07-19*