Brondell RF-20
Score: 78/100GE FQK1R
Score: 80/100Rankings
The GE FQK1R is a single-stage under-sink replacement filter cartridge designed for GE's GXK140TNN and GXULQR water filtration systems. It utilizes a carbon block technology to reduce lead, chlorine, sediment, cysts, and PFOA/PFOS contaminants while maintaining a high-flow design. The unit is IAPMO certified to NSF/ANSI standards and features a twist-lock installation mechanism for easy maintenance.
The Brondell RF-20 is a three-stage sediment and carbon block filter replacement pack designed exclusively for the Brondell Circle RO system. It offers comprehensive contaminant reduction with multiple NSF certifications but requires frequent bi-annual replacements. It is best suited for households with existing Brondell Circle systems needing regular maintenance.
| Attribute | | GE FQK1R |
|---|---|---|
6 monthsbest | 6 monthsbest | |
3best | 1 | |
— | 1,500 gallonsbest | |
| ↓ lower better | 11.25 inchesbest | 13.25 inches |
| ↓ lower better | 8.25 inches | 3.5 inchesbest |
| ↓ lower better | 2.75 inchesbest | 3.5 inches |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | | GE FQK1R |
|---|---|---|
Value & Warranty(1) | ||
Warranty (years) | Lifetime years | null years |
Dimensions & Fit(3) | ||
Height (inches) | 11.25 inches | 13.25 inches |
Width (inches) | 8.25 inches | 3.5 inches |
Depth (inches) | 2.75 inches | 3.5 inches |
Performance & Filtration(4) | ||
Certifications | NSF/ANSI 42, 53, 58, 372; WQA Gold Seal | NSF/ANSI 42, 53, 372, CSA B483.1, IAPMO Certified |
Contaminants Removed | 64 | Lead, Chlorine, Sediment, Cysts, PFOA/PFOS, Arsenic |
Filtration Stages | 3 | 1 |
Filtration Technology | Sediment and Carbon Block | Carbon Block |
Installation & Compatibility(1) | ||
Installation Type | Twist-and-seal | Under Sink |
Products in the top-left offer the best value (high score, low price).
Professional reviewers characterize the RF-20 as a solid mid-tier water filtration solution, highlighting the value of its multi-standard certifications and effectiveness of its three-stage architecture.
Everyday users express strong satisfaction with water quality improvements and ease of installation, though some complain about the cumulative cost of replacements.
