3M Company NDP01-4S-4 Deep Pleat Air Filter 16x25x4 4 Pack

Product Description

The 3M COMPANY NDP01-4S-4 is a deep pleat air filter designed for whole-home forced-air HVAC systems. Sold as a case of 4 filters, each unit measures 16 inches by 25 inches by 4 inches and is engineered for ultra allergen reduction performance. The deep pleat construction increases media surface area compared to standard 1-inch filters, supporting longer service intervals and improved particulate capture. This filter is installed by HVAC technicians or knowledgeable homeowners during routine maintenance on residential air handling units and furnaces.

This filter is suited for residential forced-air systems with filter cabinets or return-air housings that accept a 4-inch deep pleat cartridge in the 16 by 25 inch nominal size. The 4-inch depth makes it appropriate for whole-house filter systems and media cabinets commonly found in residential HVAC installations. Each case includes 4 filters, making it practical for annual stocking or multi-unit service routes.

Key Features

• Deep pleat design increases media surface area for extended filter life and improved airflow efficiency
• Ultra allergen reduction filtration targets airborne particles including dust, pollen, and pet dander
• Nominal size: 16 inches by 25 inches by 4 inches fits standard deep pleat media cabinets
• Case quantity of 4 filters per pack reduces per-unit cost for service fleets and multi-property accounts
• Drop-in replacement format requires no tools for filter changeout

Compatibility

Designed as an OEM-style replacement deep pleat filter for residential forced-air HVAC systems with media cabinets or return-air housings accepting a 16 by 25 by 4 inch filter cartridge.

Installation Notes

Filter replacement is performed by HVAC technicians or qualified service personnel. Power down the air handling unit or furnace at the disconnect or thermostat before opening the filter cabinet. Confirm airflow direction arrows on the filter frame align with the direction of airflow toward the blower before seating the filter. Follow local codes and the equipment manufacturer's recommended service intervals for filter replacement schedules.

Technical Specifications

• Filter Dimensions: 16 inches x 25 inches x 4 inches
• Package Quantity: 4 filters per case
• Unit of Measure: EA
• Weight: 11.2 pounds

Standard Information

• Brand: 3M COMPANY
• Manufacturer Part Number: NDP01-4S-4