Features
iSpring Water Systems Manufacturer Limited Warranty
We offer a 1-year limited manufacturer warranty on new under sink water filtration systems that are sold directly by iSpring Water Systems on different channels or by an authorized wholesaler such as Amazon.com, Home Depot, Lowe's, Walmart, Overstock.com, etc. This warranty covers defects in materials or workmanship in manufacturing your iSpring products.
The warranty begins from the date of purchase. We will replace or repair any part of the product that we find to be defective due to faulty materials or workmanship within the warranty period starting on the date of the original purchase.
The warranty does not cover any systems or products that Manufacturer's in compliance with our instructions or that have been abused or operated incorrectly. Free shipping on replacement parts only applies to the 48 contiguous U.S. states. International customers are responsible for any VAT, tariff, duty, taxes, handling fees, customs clearance charges, etc.
- AvailabilityIn Stock
- Model EXTWUS5
- Manufacturer iSpring
- Product Weight 0.02 LB
iSpring vs Other Brands
Feature



NSF/ANSI 58 Certification
Yes (full system certified)
Often partial or none
Verified performance & safety
Filtration Stages
Clear 3/4/5/7 stage options
Usually 4-5 stages
More complete options
Alkaline Remineralization
Available (RCC7AK/RCC7AK-UV)
Rare or expensive add-on
Better taste & pH balance
See-through 1st Stage Housing
Yes, smart flow sensor
Unavailable in most systems
Easy visual inspection
Daily Production
75 GPD (reliable output)
Often lower or overstated
Reliable daily production
Replacement Filters
Widely available & affordable
Hard or harder to find
Lower long-term cost
Installation
DIY friendly, no plumber needed
Can be more complex
Faster & easier set-up
Support & Warranty
Responsive support + solid warranty
Varies widely
Better post-purchase experience
Value for Money
High performance at competitive price
Higher price for similar specs
Better cost-effectiveness

