---
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: "S$241"
currency: SGD
in_stock: true
category: "I Spring"
url: https://www.desertcart.sg/products/70011705-ispring-us31-under-sink-water-system-nsf-certified-3-stage
store_origin: SG
region: Singapore
---

# 20x faster 1 GPM flow rate 10,000-gallon ultra capacity patented above-counter installation - 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:** S$241
**Availability:** ✅ In Stock

## Summary

> 🚰 Elevate your hydration game with instant, pure water—because your kitchen deserves the best!

## 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?** S$241 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sg](https://www.desertcart.sg/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

- • **Instant Flow, Zero Wait:** Delivers 1 gallon per minute—20x faster than pitchers—perfect for busy kitchens and instant hydration.
- • **Sleek Design with Smart Transparency:** Brushed nickel faucet paired with a clear filter housing for easy visual checks and a modern kitchen upgrade.
- • **Effortless Above-Counter Installation:** Innovative top-mounted fastener means no more under-sink struggles; install like a pro in minutes.
- • **Elite 3-Stage NSF Certified Filtration:** Triple-layer defense removes PFAS, chloramine, chlorine & heavy metals for pristine water quality.
- • **Long-Lasting 10,000-Gallon Filter Life:** Enjoy up to 12 months of premium water with minimal maintenance and fewer replacements.

## Overview

The iSpring US31 is a NSF/ANSI 58 certified 3-stage under-sink water filtration system that reduces PFAS, chloramine, chlorine, heavy metals, and odors. Featuring a 10,000-gallon filter capacity with a 12-month lifespan, it delivers a rapid 1 GPM flow rate—20 times faster than standard pitchers. Its patented above-counter installation and transparent housing make setup and maintenance hassle-free, while the brushed nickel faucet adds a premium touch. Backed by a 1-year warranty and U.S.-based support, it ensures reliable, fresh mineral-tasting water for your home or office.

## 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

## Features

- 【NSF 58 Standard Purification】 : Tested by independent third parties against NSF/ANSI 58 standards. The PP, GAC, and CTO triple-filtration stack removes heavy metals, chlorine, sediment, and odors for elite-level safety.
- 【10,000-Gallon Ultra Capacity】: Built for long-term performance with a filter life of up to 12 months. Enjoy high-quality water year-round with fewer replacements and lower maintenance costs.
- 【20x Faster Flow Rate】: Delivers an on-demand flow of 1 GPM—20 times faster than standard water pitchers. Perfect for instant drinking, washing produce, or filling large pots without the wait.
- 【Patented Above-Counter Installation】： No more struggling under the sink! The top-mounted fastener allows you to secure the faucet entirely from above the countertop, making installation fast and hassle-free.
- 【Smart Visibility & Premium Finish】： Features a high-quality brushed nickel faucet and a transparent 1st-stage housing, allowing for easy visual filter inspections at a glance.
- 【Fresh Mineral Taste】: Deeply purifies while retaining essential natural minerals. Delivers a crisp, refreshing taste similar to high-end bottled mineral water. (Note: Does not reduce TDS; for scale removal, choose iSpring RO systems).
- 【U.S.-Based Expert Support】: Includes a 1-year manufacturer warranty and lifetime technical support from our dedicated team in Atlanta, GA. Reliable quality and service you can trust.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07CHXVRS5 |
| Best Sellers Rank | #4,720 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #9 in Under-Sink & Countertop Filtration |
| Brand Name | iSpring |
| Capacity | 10000 Gallons |
| Container Type | Bottle |
| Customer Reviews | 4.5 4.5 out of 5 stars (1,962) |
| Filter Life Cycle | 12 Months |
| 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 |
| Part Number | US31 |
| 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 |
| Water Saving Percentage | 100.0 |

## 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.

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

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*Product available on Desertcart Singapore*
*Store origin: SG*
*Last updated: 2026-07-09*