3M NDP02-4IN-4 Allergen Reduction Filter 20x20x4 1550 Mpr

Product Description

The 3M COMPANY NDP02-4IN-4 is an electrostatically charged allergen reduction air filter rated at MPR 1550, designed for residential forced-air HVAC systems. It ships as a 4-pack of filters, each with a nominal size of 20 x 20 x 4 inches and an actual size of 19-3/4 x 19-3/4 x 4-3/16 inches. The electrostatic media attracts and captures airborne particles including pollen, mold spores, and dust mite debris. Each filter is rated for up to 12 months of service life, making it well suited for low-replacement-frequency maintenance programs in residential applications. HVAC technicians and service contractors commonly use this filter in scheduled filter-replacement calls.

This filter is intended for residential forced-air heating and cooling systems that accept a 4-inch nominal depth filter housing. It fits filter housings or media cabinets designed for 20 x 20 x 4-inch nominal filters. The 1550 MPR rating places it in a mid-to-high efficiency range for fiberglass-free, electrostatically charged residential media, making it appropriate for households with allergy or indoor air quality concerns. It is sold in a package quantity of 4 filters per unit of measure.

Key Features

• MPR 1550 electrostatic media captures pollen, mold spores, and dust mite debris
• Nominal size 20 x 20 x 4 inches; actual size 19-3/4 x 19-3/4 x 4-3/16 inches
• Each filter rated for up to 12 months of service life
• Sold as a 4-pack for efficient stocking and scheduled maintenance use
• Designed for residential forced-air HVAC filter housings accepting 4-inch nominal depth filters

Compatibility

Designed for residential forced-air HVAC systems using filter housings or media cabinets that accommodate a 20 x 20 x 4-inch nominal size filter.

Installation Notes

Filter replacement should be performed by a qualified HVAC technician or a knowledgeable homeowner following the furnace or air handler manufacturer instructions. Always power down the air handler or furnace at the disconnect or thermostat before opening the filter cabinet. Verify the airflow direction arrow on the filter frame aligns with the direction of airflow toward the blower. Dispose of used filters in a sealed bag to contain captured particulates.

Technical Specifications

• Nominal Size: 20 x 20 x 4 inches
• Actual Size: 19-3/4 x 19-3/4 x 4-3/16 inches
• MPR Rating: 1550
• Filter Depth: 4 inches nominal
• Service Life: Up to 12 months per filter
• Package Quantity: 4 filters
• Filter Technology: Electrostatically charged media
• Application: Residential
• Weight: 11.93 pounds (package)

Standard Information

• Brand: 3M COMPANY
• Manufacturer Part Number: NDP02-4IN-4