You can check the price history of iSpring CUA4-BLK 0.01 Micron Ultra Filtration Under Sink Water Filter System, High Capacity Tankless 4-Stage Ultrafiltration Water Filter, Removes 99.99% Contaminants, Quick Filter Change with Faucet here. This product's current Price in USA is $285.99. The average and highest prices are $261.12 and $285.99 respectively.
Lowest Ever Price
$220.05
23rd Jun 2026
Average Price
$261.12
Based on 350 days price tracking
Highest Price
$285.99
5th Aug 2025
Current Price in USA
Price
$285.99
Recent Price Drops on iSpring CUA4-BLK 0.01 Micron Ultra Filtration Under Sink Water Filter System, High Capacity Tankless 4-Stage Ultrafiltration Water Filter, Removes 99.99% Contaminants, Quick Filter Change with Faucet
Price Drop22nd Jun 2026
$285.99→$220.05
23.06% drop
Price Drop7th Apr 2026
$257.38→$231.64
10% drop
Price Drop14th Mar 2026
$285.99→$257.38
10% drop
Price Drop27th Jan 2026
$285.99→$257.38
10% drop
Price Drop25th Sep 2025
$285.99→$243.09
15% drop
Product Information
Details
Product Name
iSpring CUA4-BLK 0.01 Micron Ultra Filtration Under Sink Water Filter System, High Capacity Tankless 4-Stage Ultrafiltration Water Filter, Removes 99.99% Contaminants, Quick Filter Change with Faucet
Store Product Code
B0FL8F2XL6
Store Name
amazon.com
Brand
iSpring
Rating
9.2 / 10
Category
Under-Sink & Countertop Filtration
Dimensions
14.9"L x 3.9"W x 13.4"H
Features
Powerful 4-Stage Filtration: This under sink water filter system combines PP sediment, KDF, GAC, and a 0.01 micron ultrafiltration membrane to reduce chlorine, lead, rust, chloramine, hydrogen sulfide, and heavy metalswhile preserving essential minerals for healthier, better-tasting water. Note: This is not a reverse osmosis system and does not reduce TDS.
High-Efficiency Ultrafiltration System: The 4-stage ultrafiltration water filter includes a 5-micron PP filter to capture larger particles like sand and dirt; a UF membrane for ultra-fine filtration; KDF/GAC filters for improved control of chemical contaminants such as chlorine by-products, hydrogen sulfide, and heavy metals; and an activated carbon block for final taste polishing.
Zero Waste, Compact Design: As a tankless under sink water filter, the CUA4-BLK produces no wastewater, requires no storage tank, and fits perfectly under any standard sinkideal for use as a kitchen sink water filter, water filter for refrigerator, RV water filter, or any compact house water filter application.
Premium-Grade Components: Includes a lead-free faucet for clean drinking water. All filters, tubing, and water-contact components meet NSF/ANSI standards, ensuring safety and reliability in any home water filtration system.
Quick Installation & Filter Changes: With push-to-connect fittings, this under sink filter system for drinking water installs in minutes. Twist-on, twist-off cartridges allow tool-free filter replacement. Each filter lasts 6-12 months depending on water source and usageperfect for a low-maintenance water filter system.
Images
×
Rating and Reviews
9.2Based on 7135 reviews
iSpring CUA4-BLK 0.01 Micron Ultra Filtration Under has 9.2 rating out of 10. This average rating is consist of 7135 individual ratings. You can rate this product at product review page.
* Predictions is created on based of past prices and trends, it does not guarantee that it will happen. These are just prediction for theoretical information only.