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The 3M COMPANY NDP03-5IN-2 is a deep pleat air filter designed for residential and light commercial HVAC systems requiring high-capacity filtration in a 20 x 25 x 5 inch form factor. Sold as a 2-pack, this Filtrete Ultra Allergen Reduction filter captures airborne particles including dust, pollen, pet dander, and other common allergens. The deep pleat construction increases media surface area, extending service life compared to standard 1-inch panel filters. HVAC technicians and property managers install this filter in systems designed to accept 5-inch media filters, typically found in whole-home air cleaners and high-efficiency air handler cabinets.
This filter is suited for residential forced-air systems and light commercial applications where a 5-inch deep pleat filter cabinet is installed. The 20 x 25 x 5 inch size is a common format for whole-home media filter housings. This listing ships two filters per order, making it practical for scheduled maintenance replacements. Installation is straightforward and is typically performed by HVAC technicians or knowledgeable facilities maintenance personnel during routine filter change intervals.
Designed as an OEM-style replacement for residential and light commercial forced-air HVAC systems that accept a 20 x 25 x 5 inch deep pleat media filter.
A licensed HVAC technician or trained maintenance professional should install this filter. Power down the air handler or furnace at the disconnect before opening the filter cabinet. Confirm airflow direction arrows on the filter frame align with system airflow before seating the filter. Follow the equipment manufacturer's recommended change interval and local maintenance codes.
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