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iSpring FUS15S Replacement Filter Cartridge for US15SL/US15SD Under Sink Water Filter, 10K Gallons High Capacity, Replacement Filter

2 total reviews

Regular price $28.99
Sale price $28.99 Regular price $28.99
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In stock · Ships within 1–2 business days

iSpring FUS15S
$28.99

Features

iSpring FUS15S Replacement Filter Cartridge for US15SL/US15SD Under Sink Water Filter, 15K Gallons High Capacity, Ultra filtration Filter

The multistage filtration ensures a great user experience.

With a filtration accuracy of 0.5 μm, the iSpring Undersink Water Filtration Replacement Filter reduces pollutants, such as chlorine, taste and odor, sediment, rust, and other heavy metals. You don’t have to worry about the safety of the filtered water.

The filter also retains minerals that are essential to your body, such as potassium, calcium, sodium, and magnesium. Enjoy fresh water with iSpring.

Essential minerals

  • Calcium is one of the most abundant metal elements in the human body. It plays a vital role in the physiological and biochemical processes of organisms and cells.
  • Potassium is vital for the functioning of all living cells. It helps maintain a normal heartbeat and the blood’s pH level. It is also an important element in the synthesis of protein.
  • Sodium can stimulate nerves and muscles, regulating osmotic equilibrium and pH and promoting the absorption of nutrients such as glucose and amino acids.
  • Magnesium is one of the most abundant elements in the human body. It stabilizes muscle health and nerve function and helps maintain a normal heartbeat.


Why iSpring?
iSpring Water Systems LLC is a family-owned company located in Georgia, USA, specializing in reverse osmosis water filtration systems and whole house water filtration systems. With over a decade of experience, our products include top-of-the-line residential and commercial reverse osmosis (RO) systems, whole house water systems, ultrafiltration systems, shower filters, faucet filters, counter top filters, filter cartridges and housings, kitchen faucets, and fittings. Our aim is to make high-quality drinking water accessible for all households. With affordable pricing, high quality, prompt delivery, and top-notch customer service, we hope to assist in bringing you great water for many years to come.

Manufacturer: iSpring

  • AvailabilityIn Stock
  • Model FUS15S
  • Manufacturer iSpring
  • Product Dimensions 10.0"L x 2.8"W x 1.8"H
  • Product Weight 0.9 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

Reviews

  • 5 stars: 2 (100%)
  • 4 stars: 0 (0%)
  • 3 stars: 0 (0%)
  • 2 stars: 0 (0%)
  • 1 star: 0 (0%)
A
Anonymous
Great product and service

Great product and great service. Been using this filter for a few years and its easy to install and the quality is great. Sean who helped me with it is awesome

A
Anonymous
Excellent customer service

Ordering was easy and relatively fast shipping. I had a question about a rattle noise in the cartridge but was reassured that it would not effect the performance of the filter. I installed it and so far there has been no loss of water pressure. I corresponded with Michele at iSpring throughout the process of seeking help and she has been terrific. She has responded to all my inquires and been very helpful in keeping me informed and answering my questions. I have been happy with the filter for the time I have had it and appreciate the good customer service after the purchase.