• iSpring US31 3-Stage Under Sink Water Filter System with Faucet, 1 Year by iSpring
  • iSpring US31 3-Stage Under Sink Water Filter System with Faucet, 1 Year - Image 2
  • iSpring US31 3-Stage Under Sink Water Filter System with Faucet, 1 Year - Image 3
  • iSpring US31 3-Stage Under Sink Water Filter System with Faucet, 1 Year - Image 4
  • iSpring US31 3-Stage Under Sink Water Filter System with Faucet, 1 Year - Image 5
  • iSpring US31 3-Stage Under Sink Water Filter System with Faucet, 1 Year - Image 6
  • iSpring US31 3-Stage Under Sink Water Filter System with Faucet, 1 Year - Image 7
1 7

iSpring

iSpring US31 3-Stage Under Sink Water Filter System with Faucet, 1 Year

iSpring US31 3-Stage Under Sink Water Filter System with Faucet, 1 Year

$174.60 USD
$174.60 USD
Sale Sold out
Shipping calculated at checkout.

About This

  • 【Classic 3-Stage 2.5x10-inch Olddies】: Invented in the 1970s and a de facto industrial standard and the most popular so far. Why? Repliable, Trustworthy, Get the job done, and, fortunately or unfortunately, Dirt Cheap, only $17.43 for 3 stages pack iSpring F3.
  • 【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.
  • 【Physics and Math Never Lie】: With reusable housing, each cartridge is nearly full of filtration material: 355g, about 1kg total in 3 stages. That's 7x more filtration material than quick-change filters (only 135g in a single stage).
  • 【NSF/ANSI Certified Filter】: The PP, GAC, and CTO triple-filtration stack reduces chlorine, sand, dirt, rust, bad taste, sediment, and odors for elite-level safety.
  • 【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).
  • 【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.
  • 【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.
  • 【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.

Overview

  • Brand : iSpring
  • Special Feature : Multi Stage Filtration, Portable, Heavy Duty, Leak-Proof
  • Product Dimensions : 13"L x 5.3"W x 14.2"H
  • Material : Combination of materials
  • Capacity : 10000 gallons
  • Included Components : housings, filters, parts and tubings, faucet and mounting bracket
  • Package Information : Bottle
  • Installation Type : Under Sink
  • Purification Method : 3 Stage. Chemical Absorption and Mechanical Filtration
  • Power Source : Ac
View full details

Customer stories

What Our Customers Say

Hear from customers about their experience with our products and service.

The quality exceeded my expectations. Beautifully made and a pleasure to use every day.

Alex Morgan

Verified customer

A thoughtful design, excellent service, and a smooth experience from start to finish.

Jordan Lee

Verified customer

Exactly what I was looking for. The attention to detail makes this feel truly special.

Taylor Kim

Verified customer

BLOG

View all
  • Stop Dealing with Clutter: How Dual-Device Wireless Chargers Streamline Your Desk

    Stop Dealing with Clutter: How Dual-Device Wire...

    In a world where we rely on multiple mobile devices throughout the workday, desk clutter accumulates fast. Between your primary smartphone, secondary work phone, wireless earbuds, and smart accessories, your...

    Stop Dealing with Clutter: How Dual-Device Wire...

    In a world where we rely on multiple mobile devices throughout the workday, desk clutter accumulates fast. Between your primary smartphone, secondary work phone, wireless earbuds, and smart accessories, your...

  • Smart Desk Accessories Every Small Business Owner Needs in 2026

    Smart Desk Accessories Every Small Business Own...

    Running a small business in 2026 means juggling endless tasks, from managing operations to handling client communications. Your desk is more than just a place to sit—it’s the command center...

    Smart Desk Accessories Every Small Business Own...

    Running a small business in 2026 means juggling endless tasks, from managing operations to handling client communications. Your desk is more than just a place to sit—it’s the command center...

  • Cable Chaos Solution: 7 Clever Ways to Hide and Organize Office Electronics Wires

    Cable Chaos Solution: 7 Clever Ways to Hide and...

    There is nothing quite like a sleek, minimalist desk setup to boost your focus and daily energy. But even with the most expensive monitor, mechanical keyboard, and standing desk, a...

    Cable Chaos Solution: 7 Clever Ways to Hide and...

    There is nothing quite like a sleek, minimalist desk setup to boost your focus and daily energy. But even with the most expensive monitor, mechanical keyboard, and standing desk, a...

1 3
View all

Frequently Asked Questions

Once your order is shipped, you will receive a confirmation email containing a tracking number and a link to monitor your delivery status in real-time. You can also log into your account to view order history.

We offer a 30-day return policy for unused items in their original packaging. To initiate a return, please visit our Returns Center or contact our customer support team. Return shipping fees may apply unless the item is defective.

We take great care in packaging, but accidents can happen. If your item arrives damaged or defective, please contact us within 48 hours of delivery with photos of the item and box, and we will promptly send a replacement or issue a full refund.

Currently, we ship to the United States and select international regions. Standard and expedited shipping options are available at checkout. Shipping rates and delivery times are calculated based on your location.