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.

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iSpring US31 Water Filtration System for Drinking, NSF Certified 3-Stage Water Filters, Tankless, High Capacity Water Filter System with Brushed Nickel Faucet

iSpring US31 Water Filtration System for Drinking, NSF Certified 3-Stage Water Filters, Tankless, High Capacity Water Filter System with Brushed Nickel Faucet

Q: Does this system require electricity to operate?

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?

The feed water pressure should be: 30-70 psi

Q: How long do the filters last before needing replacement?

The filters should be replaced every 6 to 12 months, depending on usage and water quality. This ensures optimal performance and water quality.

Product ID: 70011705

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Details

Brand
iSpring
Special Feature
Tankless water
Product Dimensions
13"L x 5.3"W x
Package Information
Cartridge
Installation Type
Under Sink
Power Source
Ac

⚡1 GPM fast flow rate

💧3-stage purification

🔧Tankless, easy install

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

Description

💧 Elevate your hydration game with pure, fast, and stylish water filtration!

TRIPLE STAGE PURITY - PP sediment, GAC carbon & CTO filters remove sediments, heavy metals & odors for crystal-clear water.
RAPID FLOW ZERO WAIT - Delivers up to 1 gallon per minute—20x faster than pitchers—perfect for busy, health-conscious homes.
SLEEK EUROPEAN DESIGN - Brushed nickel faucet with clear housing blends style with smart filter monitoring.
MINERAL RICH HYDRATION - Preserves essential minerals by not lowering TDS, ensuring fresh, healthy water every sip.
HASSLE FREE MAINTENANCE - Tankless system with easy filter swaps every 6-12 months backed by lifetime US support.

The iSpring US31 is a NSF-certified, tankless under-sink water filtration system featuring a 3-stage purification process that removes sediments, heavy metals, chlorine taste, and odors while preserving healthy minerals. It delivers up to 1 gallon per minute flow rate through a sleek brushed nickel faucet, combining high capacity with easy installation and maintenance. Designed for modern homes, it offers reliable, fresh drinking water with lifetime US-based support.

Specifications

Brand	iSpring
Special Feature	Tankless water filtration system
Product Dimensions	13"L x 5.3"W x 14.2"H
Package Information	Cartridge
Installation Type	Under Sink
Power Source	Ac
Item Weight	5.45 Kilograms
Model Name	US31
Maximum Flow Rate	1 Gallons Per Minute
Upper Temperature Rating	100 Degrees Fahrenheit
UPC	662425095681
Global Trade Identification Number	00662425095681
Manufacturer	iSpring Water Systems
Part Number	US31
Item Weight	11.99 pounds
Item model number	US31
Is Discontinued By Manufacturer	No
Size	Standard
Color	Multicolor
Style	3-Stage Under Sink Water Filtration System
Pattern	Water Filtration System
Item Package Quantity	1
Special Features	Tankless water filtration system
Batteries Included?	No
Batteries Required?	No
Warranty Description	1 Year Manufacturer

Have a Question? See What Others Asked

Does this system require electricity to operate?

How much water pressure is required for it to work?

How long do the filters last before needing replacement?

Will it reduce TDS?

Common Questions

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Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

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Delivery times vary by destination country, typically ranging from 3-9 business days. Each order is fully trackable through our system. We handle all customs clearance and use reliable courier partners for last-mile delivery. You'll receive regular updates about your order status via email and our app.

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Desertcart is an international e-commerce platform operating since 2014. We securely process thousands of orders globally each day. Every product goes through our quality verification process before delivery, and we provide end-to-end order tracking, 24/7 customer support, and a comprehensive returns policy to ensure a safe shopping experience.

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Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

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