Filterlogic 3US-PF01 Replacement Filter – NSF Certified, 6 Months Under-Sink

Overview

The Filterlogic 3US-PF01 replacement filter is an easy upgrade for homes relying on under-sink filtration. Engineered for cold-water connections, it offers a straightforward swap that preserves the faucet experience while delivering consistent, refreshing water at the tap. While marketed as a compatible replacement for popular models, it emphasizes reliability, service life, and a familiar filtration routine for everyday use.

Compatibility and Certification

This cartridge is designed to replace 3M 3US-PF01 and related Filtrete models, along with Manitowoc K-00337 and K-00338 and Delta RP78702. It fits cold-water lines and does not reduce TDS levels. It carries NSF/ANSI 42 and 372 certifications, signaling compliance with filtration performance and safe materials.

Key benefits

• NSF/ANSI 42 and 372 certified filtration for added assurance
• Mineral retention helps preserve the natural mineral content in water
• Leak-free replacement that mirrors the original cartridge experience
• Six months of use or up to 15,000 gallons of water for the typical household
• Broad compatibility with Filtrete, Manitowoc, Delta and HF series systems

What it fits

• 3M Filtrete 3US-PF01 and related 3US family filters
• Filtrete under-sink filtration setups in cold-water connections
• Manitowoc K-00337 and K-00338 compatible spare parts
• Delta RP78702 and various HF-series filters such as HF25, HF27, HF20

Real-world use

Ideal for households that want a simple, reliable replacement without changing their plumbing. Install in minutes and enjoy a dependable water upgrade. The design supports steady performance across seasons, maintaining flow as demand shifts.

What you get

A single Filterlogic 3US-PF01 replacement cartridge engineered for under-sink use, focusing on simplicity, compatibility, and consistent results. The cartridge is designed to minimize leaks and preserve existing water chemistry for a familiar tasting water experience.

Installation tips

To install, shut off the cold-water supply, remove the old cartridge, and insert the new Filterlogic unit until it seats firmly. Run water for a few minutes to clear any inner packaging and check for leaks. If you notice a loose seal, reseat the cartridge and re-tighten the housing.