---
product_id: 70011705
title: "iSpring US31 Under Sink Water System, NSF Certified 3-Stage Water Filters, Reduces PFAS, Chloramine, Chlorine and More, Tankless Water Filter System with Faucet"
brand: "ispring"
price: "฿11302"
currency: THB
in_stock: true
reviews_count: 9
category: "I Spring"
url: https://www.desertcart.co.th/products/70011705-ispring-us31-under-sink-water-system-nsf-certified-3-stage
store_origin: TH
region: Thailand
---

# Tankless, no electricity needed 3-stage filtration tech Up to 1 GPM flow rate iSpring US31 Under Sink Water System, NSF Certified 3-Stage Water Filters, Reduces PFAS, Chloramine, Chlorine and More, Tankless Water Filter System with Faucet

**Brand:** ispring
**Price:** ฿11302
**Availability:** ✅ In Stock

## Summary

> 🚰 Elevate your hydration game with sleek, smart, and spotless water!

## Quick Answers

- **What is this?** iSpring US31 Under Sink Water System, NSF Certified 3-Stage Water Filters, Reduces PFAS, Chloramine, Chlorine and More, Tankless Water Filter System with Faucet by ispring
- **How much does it cost?** ฿11302 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.th](https://www.desertcart.co.th/products/70011705-ispring-us31-under-sink-water-system-nsf-certified-3-stage)

## 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

- • **Pure Power Trio:** Triple-layer filtration crushes PFAS, chloramine & chlorine for crystal-clear water.
- • **Space-Savvy Design:** Tankless system fits snugly under your sink—no bulky tanks stealing your cabinet real estate.
- • **Effortless Elegance:** European brushed nickel faucet + clear housing for instant filter health check—style meets function.
- • **Flow Without Limits:** Delivers up to 1 gallon per minute on demand—20x faster than typical pitchers, zero wasted water.
- • **Plug & Play Peace of Mind:** Install in 15 minutes with all parts included, backed by lifetime US-based support.

## Overview

The iSpring US31 is a NSF-certified, 3-stage under-sink water filtration system that removes sediments, heavy metals, chloramine, chlorine, and PFAS without stripping healthy minerals. Featuring a tankless design and a European-style brushed nickel faucet, it delivers up to 1 GPM flow rate on demand. Easy to install and maintain, it’s engineered for durability and backed by lifetime US support, making it a top-tier choice for clean, fresh drinking water.

## 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: Want Clean And Safe Drinking Water? Then this iSpring System is your answer! - We’ve been searching for a 3-Stage Filter System for a while now. With having limited cabinet space under our kitchen sink area we didn’t want a larger tank system. We’ve owned a iSpring spin down whole home sediment filter for years now and it has worked out perfectly for us. Plus iSpring’s customer service is hands down the best so it was a no brainer for us to strongly consider their product options while researching. In the end, we picked this iSpring 3 Stage Water Filtration System because of their strong reputation for quality made products, outstanding customer service, providing piece of mind and their real NSF / ANSI 58 Certified Water Filters all topped our list. Other great things about this system are that it requires No Electricity, provides a High Continuous Flow Rate without any wasted water going down the drain. Plus it has No Bulky Tank taking up more valuable space under your cabinet. The installation was very fast, effortless and simple. They have produced à great installation video that shows how to complete each simple step. It was so easy that my wife could had installed it by herself. From start to finish I had the unit completely installed and operating in only about 15 mins. They include everything you’ll possible need to complete the installation. Right out of the box you will feel, see and discover this systems superior engineered quality. It’s packed very well and they have designed every component with dependability, performance, ease of use and a long service life in mind. The faucet is absolutely beautiful and it operates very smoothly. It fit directly and perfectly right into one of the factory pre drilled holes in our Kitchen Sink. Plus it can also be easily installed and tightened from above your sink or counter top also. iSpring has truly thought of everything! We also love how well the filter unit fits under our cabinet. Best of all we love how much better tasting and safer our drinking water is now! The price is great when compared to the other brands. So save yourself time, prevent future headaches, protect your Family’s Health and order à iSpring 3-Stage Water Filter System for your home today. Honestly, I would give it 10 Stars if I could!
Review: Awesome unit. I love it! - I bought this system to filter water for a plumbed Keurig K150P coffee maker. The one filter solution recommended by Keurig is not that good. The filter quality or capacity is nowhere near the level that iSpring offers. It takes 2 stages to get the Chlorine taste out of the water. This 3-Stage system is outstanding. The water taste great and there is zero waste like there is with an RO system. I believe this is one of the best water filtration systems on the market. The price is fair, the company has an excellent reputation, the filters are built well, and it comes with every piece and part needed to hook it up. Most systems require a few trips to Home Depot to figure out all of the parts, line sizes, etc. that is needed. This one comes with everything you need including a faucet! I personally did not use the faucet and plumbed directly to a coffee maker, but it is certainly nice that they provided one. I assume most will use this system for drinking water. It is also super easy to Tee one of the lines if you want to provide filtered water to more than one location (e.g. Ice Maker, Coffee maker). These 1/4" plastic T's work perfectly (https://www.desertcart.com/gp/product/B013ZX72ZE). The company ships more than enough feed line for most normal sized kitchens. If you need more it is easy to find 1/4" plastic ice maker line. They sell it everywhere. The only thing to keep in mind is this is not a small unit. It is big. It takes up a lot of space and it needs to be screwed to a wall/cabinet. It would not be a good idea to let it stand on its own. If it fell over it could cause problems with filtration. The advantage to the size, however, is it has room to hold quality filters. It does a great job cleaning the water. Our coffee tastes as good, or better, than most commercial shops. I am very, very pleased with this purchase. I highly recommend iSpring. Their customer service is excellent as well. Email them any question you have and they respond quickly.

## 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 |
|---------------|-------|
| ASIN | B07CHXVRS5 |
| Best Sellers Rank | #4,057 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #13 in Under-Sink & Countertop Filtration |
| Brand Name | iSpring |
| Capacity | 10000 Gallons |
| Container Type | Bottle |
| Customer Reviews | 4.5 4.5 out of 5 stars (1,929) |
| Global Trade Identification Number | 00662425095681 |
| Included Components | housings, filters, parts and tubings, faucet and mounting bracket |
| Installation Type | Under Sink |
| Item Dimensions L x W x H | 13"L x 5.3"W x 14.2"H |
| Item Type Name | Water Filtration System |
| Item Weight | 5.45 Kilograms |
| Manufacturer | iSpring Water Systems |
| Material Type | Combination of materials |
| Maximum Flow Rate | 1 Gallons Per Minute |
| Model Name | US31 |
| Model Number | US31 |
| Other Special Features of the Product | Multi Stage Filtration, Portable, Heavy Duty, Leak-Proof |
| Power Source | Ac |
| Purification Method | 3 Stage. Chemical Absorption and Mechanical Filtration |
| UPC | 662425095681 |
| Unit Count | 1.0 Count |
| Upper Temperature Rating | 100 Degrees Fahrenheit |
| Warranty Description | 1 Year Manufacturer |

## Product Details

- **Brand:** iSpring
- **Capacity:** 10000 Gallons
- **Included Components:** housings, filters, parts and tubings, faucet and mounting bracket
- **Installation Type:** Under Sink
- **Material:** Combination of materials
- **Package Information:** Bottle
- **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:** Multi Stage Filtration, Portable, Heavy Duty, Leak-Proof

## Images

![iSpring US31 Under Sink Water System, NSF Certified 3-Stage Water Filters, Reduces PFAS, Chloramine, Chlorine and More, Tankless Water Filter System with Faucet - Image 1](https://m.media-amazon.com/images/I/713QljolxML.jpg)

## Available Options

This product comes in different **Color** 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

### ⭐⭐⭐⭐⭐ Want Clean And Safe Drinking Water? Then this iSpring System is your answer!
*by B***G on February 20, 2026*

We’ve been searching for a 3-Stage Filter System for a while now. With having limited cabinet space under our kitchen sink area we didn’t want a larger tank system. We’ve owned a iSpring spin down whole home sediment filter for years now and it has worked out perfectly for us. Plus iSpring’s customer service is hands down the best so it was a no brainer for us to strongly consider their product options while researching. In the end, we picked this iSpring 3 Stage Water Filtration System because of their strong reputation for quality made products, outstanding customer service, providing piece of mind and their real NSF / ANSI 58 Certified Water Filters all topped our list. Other great things about this system are that it requires No Electricity, provides a High Continuous Flow Rate without any wasted water going down the drain. Plus it has No Bulky Tank taking up more valuable space under your cabinet. The installation was very fast, effortless and simple. They have produced à great installation video that shows how to complete each simple step. It was so easy that my wife could had installed it by herself. From start to finish I had the unit completely installed and operating in only about 15 mins. They include everything you’ll possible need to complete the installation. Right out of the box you will feel, see and discover this systems superior engineered quality. It’s packed very well and they have designed every component with dependability, performance, ease of use and a long service life in mind. The faucet is absolutely beautiful and it operates very smoothly. It fit directly and perfectly right into one of the factory pre drilled holes in our Kitchen Sink. Plus it can also be easily installed and tightened from above your sink or counter top also. iSpring has truly thought of everything! We also love how well the filter unit fits under our cabinet. Best of all we love how much better tasting and safer our drinking water is now! The price is great when compared to the other brands. So save yourself time, prevent future headaches, protect your Family’s Health and order à iSpring 3-Stage Water Filter System for your home today. Honestly, I would give it 10 Stars if I could!

### ⭐⭐⭐⭐⭐ Awesome unit. I love it!
*by P***Y on February 3, 2019*

I bought this system to filter water for a plumbed Keurig K150P coffee maker. The one filter solution recommended by Keurig is not that good. The filter quality or capacity is nowhere near the level that iSpring offers. It takes 2 stages to get the Chlorine taste out of the water. This 3-Stage system is outstanding. The water taste great and there is zero waste like there is with an RO system. I believe this is one of the best water filtration systems on the market. The price is fair, the company has an excellent reputation, the filters are built well, and it comes with every piece and part needed to hook it up. Most systems require a few trips to Home Depot to figure out all of the parts, line sizes, etc. that is needed. This one comes with everything you need including a faucet! I personally did not use the faucet and plumbed directly to a coffee maker, but it is certainly nice that they provided one. I assume most will use this system for drinking water. It is also super easy to Tee one of the lines if you want to provide filtered water to more than one location (e.g. Ice Maker, Coffee maker). These 1/4" plastic T's work perfectly (https://www.amazon.com/gp/product/B013ZX72ZE). The company ships more than enough feed line for most normal sized kitchens. If you need more it is easy to find 1/4" plastic ice maker line. They sell it everywhere. The only thing to keep in mind is this is not a small unit. It is big. It takes up a lot of space and it needs to be screwed to a wall/cabinet. It would not be a good idea to let it stand on its own. If it fell over it could cause problems with filtration. The advantage to the size, however, is it has room to hold quality filters. It does a great job cleaning the water. Our coffee tastes as good, or better, than most commercial shops. I am very, very pleased with this purchase. I highly recommend iSpring. Their customer service is excellent as well. Email them any question you have and they respond quickly.

### ⭐⭐⭐⭐⭐ 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.

## 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

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.co.th/products/70011705-ispring-us31-under-sink-water-system-nsf-certified-3-stage](https://www.desertcart.co.th/products/70011705-ispring-us31-under-sink-water-system-nsf-certified-3-stage)

---

*Product available on Desertcart Thailand*
*Store origin: TH*
*Last updated: 2026-04-27*