Waterdrop 3US-MAX-F01 under-sink filter installed for cleaner-tasting water at tap
Close-up of Waterdrop 3US-MAX-F01 filter body with BPA-free materials
Water flow test shows stable 0.75 gpm with Waterdrop filter
Parts kit for quick Waterdrop 3US-MAX-F01 replacement and maintenance
Under-sink mounting setup with Waterdrop filter safely attached
BPA-free and lead-free construction highlighted in Waterdrop filter design
Replacement cycle reminder for Waterdrop 3US-MAX-F01
Packaging box shows Waterdrop 3US-MAX-F01 and compatibility
Compatibility list includes Filtrete and Manitowoc models for Waterdrop 3US-MAX-F01

Waterdrop

Waterdrop 3US-MAX-F01 Under-Sink Water Filter (2 Pack) – NSF/ANSI 42, Replacement for Filtrete 3US-PF01

High-performance tools and home improvement made for confident daily results

$72.85

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Why customers choose TaskHolt Tools

Overview

The Waterdrop 3US-MAX-F01 under-sink water filter comes in a convenient 2-pack, designed as a replacement for Filtrete 3US-PF01 and other compatible systems. It slots neatly beneath your sink to deliver filtered water directly from your faucet, offering a practical upgrade for everyday use.

Certified and built with care, this filter emphasizes chlorine reduction through a multi-layer media approach, paired with premium materials that are BPA-free and lead-free. It is designed to integrate smoothly with popular cold-water setups, aiming to preserve routine faucet performance while delivering better-tasting water.

Key benefits and what to expect

  • NSF/ANSI 42 certified filtration using activated carbon block and advanced media to reduce chlorine and improve water quality.
  • Premium construction with BPA-free, lead-free materials; IAPMO-certified under NSF/ANSI 372 for safer internal use.

Performance and daily use

  • Stable full-flow rate of about 0.75 gpm when connected to the cold-water valve, delivering a steady, faucet-like experience.
  • Designed to operate on cold water only and does not target TDS reduction; filtration focuses on chlorine removal and taste improvement.
  • New upgrade to the WD-W00 model helps keep water fresh; plan filter replacement every 6 months or 15,000 gallons, whichever comes first, depending on water conditions.

Compatibility and maintenance

This replacement fits 3M Filtrete 3US-PF01, 3US-PS01, 3US-MAX-S01 systems, and works with other listed brands such as Manitowoc K-00337 and K-00338. It’s sold as a 2-pack for convenience.

Real-life use and benefits

Users often notice crisper water and a clean, refreshing taste at the tap. The compact under-sink design keeps your workspace uncluttered, while the 2-pack ensures you have a ready replacement when needed.

Maintenance cadence

To maintain filtration performance, replace every 6 months or after about 15,000 gallons, whichever comes first. Actual timing may vary with local water quality and usage patterns.

FAQ

Q: Which models does the Waterdrop 3US-MAX-F01 replace?

A: It replaces Filtrete 3US-PF01, 3US-PS01, 3US-MAX-S01, Aqua-Pure C-Cyst-FF, Manitowoc K-00337/00338 and related filters.

Q: How often should I replace the filter?

A: Replace every 6 months or 15,000 gallons, whichever comes first, depending on water conditions.

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