3M NDP01-4IN-4 Filtrete 16x25x4 Mpr 1550 Filter 4-pack

Product Description

The 3M COMPANY NDP01-4IN-4 is a Filtrete electrostatically charged allergen reduction air filter rated at MPR 1550. The electrostatic media attracts and captures airborne particles including pollen, mold spores, and dust mite debris as air passes through the filter. Each filter is sized to fit nominal 16 x 25 x 4 inch filter housings, with actual dimensions of 15-3/4 x 24-7/16 x 4-3/16 inches. This package contains four filters. HVAC technicians and facility maintenance personnel install these filters in residential forced-air systems to improve indoor air quality and protect equipment.

This filter is designed for residential forced-air HVAC systems that accept a nominal 4 inch depth filter. It fits standard return-air filter housings and media filter cabinets sized for 16 x 25 x 4 inch nominal filtration media. Each filter in the pack is rated for up to 12 months of service life under typical residential conditions, making the four-pack suitable for approximately four years of replacement cycles in a single system or one year across multiple units.

Key Features

• MPR 1550 electrostatic media captures pollen, mold spores, and dust mite debris
• Nominal size 16 x 25 x 4 inches fits standard deep-media filter housings
• Actual dimensions: 15-3/4 x 24-7/16 x 4-3/16 inches for proper housing fit
• Each filter rated for up to 12 months of service life
• Package includes 4 filters sold as a single unit (UoM: EA, Package Qty: 4)

Compatibility

Designed for residential forced-air HVAC systems using housing units that accommodate nominal 4 inch depth filters with a 16 x 25 inch face dimension.

Installation Notes

A licensed HVAC technician or qualified maintenance professional should install or supervise replacement of air filters in forced-air systems. Always shut down the air handler or furnace at the equipment disconnect before opening the filter cabinet. Confirm airflow direction arrow on the filter frame aligns with system airflow toward the blower. Dispose of used filters per local regulations and log the replacement date for service recordkeeping.