AF17x21x1A-M8 Merv 8 Air Filter 17x21x1

Product Description

The AF17x21x1A-M8 is a MERV 8 pleated HVAC air filter designed for residential and light commercial forced-air systems. With a nominal size of 17 x 21 x 1 inches and an actual size of 17 x 21 x 0.75 inches, this filter fits standard 1-inch filter slots in furnaces and air handlers. At MERV 8, it captures a broad range of airborne particles including dust, pollen, mold spores, and lint without significantly restricting airflow in most residential systems. HVAC technicians and homeowners handling routine maintenance will find this filter straightforward to install and sized for common residential applications.

This filter is suited for residential forced-air heating and cooling systems that use a 1-inch filter slot. It is appropriate for gas furnaces, heat pumps, and central air conditioning systems where a nominal 17 x 21 x 1 inch filter is specified. MERV 8 filtration is a widely accepted baseline for maintaining indoor air quality while preserving adequate system airflow in standard residential and light commercial ductwork configurations.

Key Features

• MERV 8 filtration captures dust, pollen, mold spores, and lint
• Pleated media construction for increased surface area and filter life
• Nominal size 17 x 21 x 1 inches fits standard 1-inch residential filter slots
• Actual size 17 x 21 x 0.75 inches for proper fit in compatible housings
• Minimum order quantity of 1 unit with availability in quantity packs of 10

Compatibility

Designed as a direct replacement for residential and light commercial forced-air systems requiring a nominal 17 x 21 x 1 inch MERV 8 pleated air filter.

Installation Notes

Air filters in forced-air systems should be installed by a qualified HVAC technician or a knowledgeable building owner following the equipment manufacturer guidelines. Always power down the furnace or air handler at the disconnect or thermostat before replacing the filter. Confirm the airflow direction arrow on the filter frame aligns with the direction of airflow toward the blower. Inspect the filter housing and gasket for gaps or bypasses that could allow unfiltered air to enter the system.