Waterdrop Plus UKF8001 Replacement Refrigerator Water Filter - Reduce

In this review the Waterdrop Plus UKF8001 replacement refrigerator water filter is judged on filtration performance, fit and ease of use for compatible Whirlpool and Maytag models. The bottom line: this filter is for households that want a tested reduction in PFAS and other contaminants while keeping beneficial minerals in their drinking water. It stands out because it is independently certified to NSF/ANSI 401, 53, 42 and 372 and lab-tested to reduce 95.3% of PFOA and PFOS, making it a solid choice for anyone worried about these contaminants.

Key Features

• NSF certifications: Certified to NSF/ANSI 401, 53, 42 and 372 so both components and the assembled cartridge are tested to reduce a broad range of contaminants.
• PFAS reduction: Third-party lab testing shows a 95.3% reduction in PFOA and PFOS, addressing a common health concern in drinking water.
• Coconut shell carbon: Uses coconut shell carbon block media with increased surface area for improved removal of chlorine taste, sediment and some heavy metals.
• Lead-free housing: BPA-free, food-grade housing meets NSF 372 lead-free requirements and aims to limit any leaching from the filter body.
• Easy maintenance: Recommended replacement every 300 gallons or 6 months and includes installation stickers to help track service intervals.
• Wide compatibility: Works as a replacement for many Whirlpool, Maytag and other OEM filter models, simplifying purchases for multiple refrigerator brands.

Who It's For

This filter is best for homeowners and renters with refrigerators that accept UKF8001-style cartridges who want verified reduction of PFAS, lead, chlorine taste and certain pharmaceuticals. It is also appropriate for anyone who prefers independent NSF testing and a carbon block design that preserves beneficial minerals.

Those who should look elsewhere include households that need extremely high flow rates or service intervals longer than six months without replacement. If ultra-fast dispensing is the top priority and slow flow has been reported on similar installs, consider checking system flow first before buying.

Pros & Cons

Pros

• NSF/ANSI certified across multiple standards for broad contaminant reduction and component safety.
• High PFAS reduction (95.3% in third-party testing) addresses an increasingly common concern.
• Coconut shell carbon block improves taste and reduces chlorine while leaving beneficial minerals.
• Includes installation stickers and clear replacement guidance for simple upkeep.

Cons

• Water flow can vary after installation; some users report slower flow in certain refrigerators.
• Replacement frequency (around 300 gallons or 6 months) may be more frequent than some long-life filters.

Specifications

Certification	NSF/ANSI 401, 53, 42 & 372
PFAS reduction	95.3% PFOA and PFOS (third-party tested)
Compatible models	Replaces UKF8001, EveryDrop Filter 4, EDR4XD1 and many Whirlpool/Maytag variants
Filter media	Coconut shell carbon block
Housing	BPA-free, food-grade, lead-free certified
Replacement interval	Approx. 300 gallons or 6 months

Our Verdict

The Waterdrop Plus UKF8001 replacement filter is a practical, well-tested option for owners of compatible Whirlpool and Maytag refrigerators who want verified reduction of PFAS, chlorine taste and several other contaminants. It offers strong value through independent certifications and a carbon block design; just be aware of possible variations in water flow and the recommended 6-month replacement interval when planning maintenance.

Frequently Asked Questions

Will this fit my Whirlpool or Maytag refrigerator?
Yes, it is designed as a replacement for UKF8001-style cartridges and lists compatibility with many Whirlpool, Maytag and related models; check your existing filter model to confirm fit.

How often should the filter be changed?
Waterdrop recommends replacing the filter after about 300 gallons or 6 months of use, though actual life depends on local water quality and usage.

Does it remove PFAS?
Yes, third-party laboratory testing reported a 95.3% reduction in PFOA and PFOS for this cartridge.