Waterdrop 3US-MAX-F01 Under-Sink Water Filter — Replacement for Filtrete 3US-PF01 (NSF/ANSI 42 Certified)

Compact filtration that travels with your daily routines

The Waterdrop 3US-MAX-F01 is designed to sit discreetly under your kitchen sink, delivering filtered water to your faucet without crowding the cabinet. This replacement unit is compatible with popular Filtrete configurations and Manitowoc systems, offering a straightforward path to improved-tasting water for everyday use—from coffee and tea to meals and kid-friendly drinks.

What you get with this filter is a thoughtfully engineered cartridge that combines an activated carbon block with additional filtration media. The result is a practical approach to reducing chlorine taste and odor while keeping the process simple and reliable for busy households.

What makes it stand out

• NSF/ANSI 42 certified filtration targets chlorine-related flavors and odors, helping water taste fresher right at the tap.
• Premium materials include BPA-free, lead-free housing, with IAPMO-listed certification for added peace of mind.
• Stable flow at 0.75 gpm ensures a consistent faucet experience and steady access to filtered water from the cold line.
• New model update to WD-W00 while maintaining compatibility with existing Filtrete and Manitowoc configurations; replacement guidance remains straightforward.

Fit, performance, and maintenance

• Compatibility includes Filtrete 3US-PF01, 3US-PS01, and 3US-MAX-S01 systems, plus Manitowoc K-00337 and K-00338, Delta RP78702, AR10000.
• Flow and filtration does not reduce total dissolved solids (TDS) while delivering steady filtration performance on cold water.
• Replacement cadence is typically every 6 months or 15,000 gallons, whichever comes first, depending on water conditions.

Usage ideas and real-life scenarios

Imagine refreshing water for everyday cooking, making a pitcher of water for the family, or improving the taste of your morning coffee. The compact design helps keep your under-sink area tidy, while the filtration work supports a convenient, everyday water experience without major upkeep.

Note: This replacement is designed for compatibility with listed systems and does not claim health benefits. Variations in water quality can influence perceived taste and aroma, and results may vary by home setup.