AF17x21x1A-M11 Merv 11 Air Filter 17x21x1

Product Description

The AF17x21x1A-M11 is a MERV 11 pleated HVAC air filter designed for residential and light commercial forced-air systems. With a nominal size of 17x21x1 inches and an actual size of 17 x 21 x 0.75 inches, this filter fits a wide range of standard filter slots in air handlers and furnaces. At MERV 11, it captures fine particulates including dust, pollen, mold spores, and pet dander, making it a solid choice for systems where air quality and equipment protection are both priorities. This listing includes a quantity of 10 filters. HVAC technicians and facility maintenance crews use this filter in routine preventive maintenance programs.

This filter is suited for residential and light commercial forced-air HVAC applications where a nominal 1-inch filter slot is specified. It works in gas furnaces, heat pumps, and air handler units that accept filters in the 17x21x1 nominal size. The MERV 11 efficiency rating positions it above standard fiberglass and MERV 8 filters, capturing smaller airborne particles without the static pressure restriction associated with higher MERV ratings. It is a practical choice for clients with mild allergy concerns or homes with pets.

Key Features

• MERV 11 filtration captures fine dust, pollen, mold spores, and pet dander
• Nominal size 17x21x1 inches fits standard residential and light commercial filter tracks
• Actual size 17 x 21 x 0.75 inches for precise fit verification before installation
• Pleated media design increases surface area for longer service intervals
• Sold in a 10-pack for bulk stocking and scheduled maintenance programs

Compatibility

Designed as an OEM-style replacement for residential and light commercial forced-air systems requiring a nominal 17x21x1 inch pleated air filter with MERV 11 efficiency.

Installation Notes

Filter installation should be performed by a qualified HVAC technician or knowledgeable facilities maintenance professional. Always shut down the air handler or furnace at the disconnect or thermostat before changing the filter. Confirm airflow direction arrows on the filter frame align with the system airflow direction before securing the filter door. Replace filters on a regular schedule based on system runtime and site conditions, typically every 60 to 90 days in moderate-use residential applications.