---
product_id: 70011705
title: "US31"
brand: "ispring"
price: "€ 334.45"
currency: EUR
in_stock: null
reviews_count: 8
category: "I Spring"
url: https://www.desertcart.es/products/70011705-us31
store_origin: ES
region: Spain
---

# Up to 1 GPM fast flow 3-stage filtration tech Easy under-sink install US31

**Brand:** ispring
**Price:** € 334.45
**Availability:** ❌ Out of Stock

## Summary

> 💧 Drink Smart, Live Fresh — The Under-Sink Upgrade You Can’t Miss!

## Quick Answers

- **What is this?** US31 by ispring
- **How much does it cost?** € 334.45 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.es](https://www.desertcart.es/products/70011705-us31)

## Best For

- ispring enthusiasts

## Why This Product

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

## Key Features

- • **Flow That Keeps Up:** Delivers up to 1 gallon per minute—20x faster than typical pitchers—perfect for busy households.
- • **Triple-Stage Purity:** PP sediment, GAC carbon & CTO filters eliminate sediments, chlorine, PFAS & more for crystal-clear water.
- • **Sleek & Smart Design:** European brushed nickel faucet with clear housing for quick filter checks—style meets function under your sink.
- • **Mineral-Rich Hydration:** Preserves essential healthy minerals by not reducing TDS, ensuring water tastes fresh and natural.
- • **Hassle-Free Maintenance:** Filters last 6-12 months, with easy replacements and lifetime US-based support for peace of mind.

## Overview

The iSpring US31 is a NSF-certified, tankless under-sink water filtration system featuring a 3-stage filter process that removes sediments, chlorine, PFAS, and chloramine while preserving healthy minerals. It delivers up to 1 gallon per minute flow rate, includes a stylish brushed nickel faucet, and offers easy installation and maintenance with clear housing for quick filter inspection. Designed for busy, health-conscious households seeking premium tap water without sacrificing flow or taste.

## Description

iSpring US31 Under Sink Water System, NSF Certified 3-Stage Water Filters, Reduces PFAS, Chloramine, Chlorine and More, Tankless Water Filter System with Faucet - desertcart.com

Review: Excellent product and service - This is an excellent filter for our family of 5. We’ve had it for roughly 5 months now, water pressure from the faucet is still as strong as it was from day one, taste is still excellent and the filters still look great. We use at least a gallon a day which was breaking the bank with our 5 gallon dispenser(not to mention this 3 stage system was cheaper than the dispenser itself). Installation was a breeze as well. We did have one minor issue with a very slow leak in the faucet, but Sean in customer service sent a new one out with no questions asked. Highly recommend.
Review: Item as described, works great. 20-30 minutes to install. - Great water fitler for the price. The three stage water filter is exactly what we needed. It does not reduce the TDS but the sediment filter and the carbon blocks really reduce the cholorine in the water and the floaties. The water flow and pressure through the filter system is remarkable. Same tubing size and dispenses filterd water much quicker than my fridge. I chose to buy this water filter because of the initial cost and the cost of the replacment filters does not break the bank. A full set of filters is less than 20 dollars! The filter system is quiet and easy to change the filters. It mounts easily to the inside of the cabinet wall and is only about 5 inches deep. The longest part of the installation was drilling a 1/2" hole in my concrete countertop.

## Features

- [Classic Drinking Filter]: The water undergoes a 3-stage purification process: PP sediment filtration, GAC carbon filter and a unique CTO filtration in the 3rd layer. This system efficiently removes common drinking water sediments such as dust, sand, particles, dirt, and rust. Additionally, it effectively eliminates heavy metals, harmful chemicals, Chloramine, cloudiness, colors, chlorine taste, and odor. It's important to note that this under sink water filtration system DOES NOT lower TDS, but preserves the healthy minerals in your water.
- [Fresh Healthy Water Supplier]: The on-demand fast flow rate of the iSpring US31 allows it to meet the widest possible range of needs in your home. Up to 20x more effective than the common water pitcher dispenser. Flow Rate: Up to 1GPM depending on source water pressure. Maxim Pressure: 90psi. It washes fresh produce like fruit and vegetables, brings health protection, can provide your entire family with delicious, clean water straight from your tap.
- [Excellent Quality and Design]: Features beautiful European-designed brushed nickel all-metal faucet and clear see-through 1st stage housing. Clear see-through 1st stage housing makes filter inspection a snap. Manufactured to comply strictly with FDA standards and tested by independent third party against NSF/ANSI standards (42, 53, 61) for water quality, material safety and structural integrity.
- [Easy to Install and Maintain]: Designed for hassle-free installation and maintenance, the system includes a high-capacity sediment filter, GAC filter, and CTO carbon filter. The sediment filter protects and extends the life of your system, while the GAC and carbon filters efficiently remove harmful contaminants. Filters should be replaced every 6 to 12 months, depending on water quality.
- [TDS Note and Customer Services]: This under sink water filter will not reduce the TDS of the incoming water. Instead, it keeps the healthy minerals in your water. If you are interested in a filter that removes TDS, please consider a Ispring reverse osmosis system.Backed by a 1-year Manufacturer with lifetime support from Atlanta, GA USA. For any issue or concern, please don't hesitate to contact us.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | iSpring |
| Capacity | 1 Gallons |
| Included Components | housings, filters, parts and tubings, faucet and mounting bracket |
| Material | Combination of materials |
| Product Dimensions | 13"L x 5.3"W x 14.2"H |
| Special Feature | Tankless water filtration system |

## Product Details

- **Brand:** iSpring
- **Capacity:** 1 Gallons
- **Included Components:** housings, filters, parts and tubings, faucet and mounting bracket
- **Installation Type:** Under Sink
- **Material:** Combination of materials
- **Package Information:** Cartridge
- **Power Source:** Ac
- **Product Dimensions:** 13"L x 5.3"W x 14.2"H
- **Purification Method:** 3 Stage. Chemical Absorption and Mechanical Filtration
- **Special Feature:** Tankless water filtration system

## Images

![US31 - Image 1](https://m.media-amazon.com/images/I/713QljolxML.jpg)

## Available Options

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

## Questions & Answers

**Q: Does this system require electricity to operate?**
A: No, the US31 under-sink water filtration system does not require electricity. It works on water pressure alone.

**Q: How much water pressure is required for it to work?**
A: The feed water pressure should be: 30-70 psi

**Q: How long do the filters last before needing replacement?**
A: The filters should be replaced every 6 to 12 months, depending on usage and water quality. This ensures optimal performance and water quality.

**Q: Will it reduce TDS?**
A: No, this under-sink water filtration system does not reduce TDS levels. Instead, it maintains the TDS of the incoming water, preserving essential minerals. If TDS reduction is necessary, we recommend considering an iSpring reverse osmosis system.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Excellent product and service
*by J***E on December 13, 2025*

This is an excellent filter for our family of 5. We’ve had it for roughly 5 months now, water pressure from the faucet is still as strong as it was from day one, taste is still excellent and the filters still look great. We use at least a gallon a day which was breaking the bank with our 5 gallon dispenser(not to mention this 3 stage system was cheaper than the dispenser itself). Installation was a breeze as well. We did have one minor issue with a very slow leak in the faucet, but Sean in customer service sent a new one out with no questions asked. Highly recommend.

### ⭐⭐⭐⭐⭐ Item as described, works great. 20-30 minutes to install.
*by B***N on September 21, 2025*

Great water fitler for the price. The three stage water filter is exactly what we needed. It does not reduce the TDS but the sediment filter and the carbon blocks really reduce the cholorine in the water and the floaties. The water flow and pressure through the filter system is remarkable. Same tubing size and dispenses filterd water much quicker than my fridge. I chose to buy this water filter because of the initial cost and the cost of the replacment filters does not break the bank. A full set of filters is less than 20 dollars! The filter system is quiet and easy to change the filters. It mounts easily to the inside of the cabinet wall and is only about 5 inches deep. The longest part of the installation was drilling a 1/2" hole in my concrete countertop.

### ⭐⭐⭐⭐⭐ Vastly improved the quality of our water.
*by W***D on November 29, 2023*

We are on a municipal water supply, and the chlorine odor and taste seemed to become much stronger in the past few weeks, so I decided it was time to install an under-counter water filter. The installation process was pretty simple and just about anyone who has installed a faucet should be able to intall this filter if they read and follow the directions. All of the necessary hardware was included, along with more than enough plastic tubing to make the needed connections. Only basic wrenches are needed to tap into the cold water line, like those that you would need to install any water line fitting. The tubing that connects the cold-water supply to the filter, and the filter to the spigot use pex-style fittings. The filter works quickly, filtering enough water for a pot of coffee in a few seconds. These are so much better than pitcher-style filters. The replacement cartridges are also very inexpensive, so I ordered an extra set to have on hand, and set up am Amazon subscription purchase for every 6 months, so when the new filter cartidges arrive I know it is about time to replace them. The difference in the taste and odor of out water was amazing! My wife thought our municipal water tasted ok, but after I installed this filter and she compared the filtered and unfiltered water, she was sure that I did something to the unfiltered water to make it taste worse than it did! I really like this item and have recommended it to family members.

## Frequently Bought Together

- iSpring US31 Classic 3-Stage Under Sink Water Filtration System for Drinking, Tankless, High Capacity, Sediment + GAC + Carbon
- iSpring F7-GAC NSF Certified 1-Year Replacement Filter Cartridge Pack, 7-Count for Standard 5-Stage Reverse Osmosis (RO) Systems
- iSpring FA15 Alkaline Inline Water Filter Cartridge, 10” x 2” with 1/4” Quick Connect, NSF Certified, Add-on for RO Systems, Balances pH & Restores Minerals, 3-Layer Replacement Filter

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---

*Product available on Desertcart Spain*
*Store origin: ES*
*Last updated: 2026-02-07*