Same NSF certification. 50% off OEM.
This independently lab-tested compatible replacement for the GE FQK1K (also known as GXRLQR Smartwater replacement, GX1S50F-compatible) is third-party certified to NSF/ANSI 42 (aesthetic) + NSF/ANSI 53 (health). We source it from the same USA factory that supplies certified replacement filters for major US retailers, without the brand-tax markup.
What it removes
- Lead 98.0% · Chlorine 97.0%
- Cysts, sediment, turbidity
- Turbidity + microparticles to 5 µm
Fits these refrigerators
Fits GE Smartwater single-stage under-sink filtration systems that use the original GE FQK1K. Cross-references: GXRLQR · GX1S50F · HXRP.
Not sure if this fits? Send us your fridge model number. We confirm within 2 hours on business days.
Why this costs less than the OEM
The filter element is identical-spec carbon block, sourced from the same NSF-licensed US factory. What you don’t pay for: GE’s brand markup, retail distribution chain.
🛡 $1,000 wrong-fit guarantee. Order the wrong filter, get a full refund plus up to $1,000 in spoiled-food coverage. We are confident in the fitment.
















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