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$133.99
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iSpring FG15B-KS Premium Quality Super Capacity GAC and KDF Carbon Filter Replacement Cartridge for Direct Connect Under Sink Water Filtration System US21B, 10” x 4.5”

$133.99
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About this item
  • [Superb Filtration Performance] FG15B-KS 10” x 4.5” compound filter is designed to effectively remove chlorine, lead, mercury, hydrogen sulfide, iron, chloride, chloramines, herbicides, odors, and other contaminants or impurities.
  • [Water Health Warrior] Teaming up with carbon filters like iSpring FC15B, this filter is super powerful to remove the unpleasant taste or odor left in chlorinated water while maintaining the protection benefits of chlorine in water disinfection. They also tackle problems like turbidity, cloudiness, colors, bad taste, and odors like hydrogen sulfide that smells like rotten eggs. A reliable shield that protects you and your family from ingesting harmful chemicals or contaminants in your tap water.
  • [Great Compatibility] Official 1st stage replacement filter cartridge for iSpring direct connect Point-of-Use(POU) undersink water filtration system US21B. Fits standard 10" undercounter or whole house water filtration systems. Individually sealed for freshness.
  • [Exceptional Filter Life] Based on the contaminant levels in source water and your water use, we suggest that you change your filters every 8-12 months for best filtration performance. Hassle-free filter cartridge replacement is a breeze!
  • [TDS Note] Please be noted that the system for which this filter works is NOT designed to reduce Total Dissolved Solids(TDS) removal and instead keeps essential minerals in your water. If you are interested in a filter that significantly reduces TDS, please consider our iSpring Reverse Osmosis (RO) systems RCC7 series or tankless RO500.
  • [Peace-of-Mind Support] We offer tech and CS support via phone and email from Atlanta, GA. Contact our responsive and professional team for product selection to suit your water filtration needs and after-sale support to maximize your user experience. Now, and years to come, we will be right here and ready to help.
  • Capacity: 80000 gallons
Product description

Made of premium GAC and KDF, this 10” x 4.5” compound carbon filter FG15B-KS is the official 1st stage replacement filter cartridge for iSpring direct connect Point-of-Use(POU) under sink water filter system US21B. It also fits standard 10" under sink water filter or whole house water filtration systems. Designed to effectively remove chlorine, lead, mercury, iron, hydrogen sulfide,chloride, chloramines, herbicides, odors, and other contaminants or impurities, FG15B-KS can team up with carbon filters like iSpring FC15B to create a reliable shield that protects you and your family from ingesting harmful chemicals or contaminants in your tap water.

Product details
Brand
iSpring
Manufacturer
iSpring
Material
KDF+GAC
Colour
10"x 4.5"
Size
1 Count (Pack of 1)
Model number
1
Part number
FG15B-KS
EAN
0810004171336

Customer reviews

What customers say about Bigamart

10 Trustpilot reviews total, with 2 shown at a time.

Trustpilot
Excellent
4.5 average rating
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S
Sigalit
🇮🇱 · January 2026

I wrote to Bigamart's customer support and they accompanied the process of reshipping the item until it finally arrived. I felt a genuine effort to solve the problem till it was finally solved.

V
Verified buyer
🇦🇺 · November 2025

The package was here in Australia from England in a few days — so quick! Something was missing and they refunded it straight away. Pretty happy with these guys.

Showing 12 of 10 reviews

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