Filter King AF20x23x1-M11 Merv 11 Air Filter 20x23x1

Product Description

The FILTER KING AF20x23x1-M11 is a MERV 11 pleated air filter designed for residential and light commercial HVAC systems. With a nominal size of 20x23x1 inches and an actual size of 19.5 x 22.5 x 0.75 inches, it fits standard filter slots calling for a 20x23x1 nominal frame. At MERV 11, this filter captures finer particulates than basic fiberglass or lower-rated pleated media, making it effective against dust, pollen, mold spores, and fine debris generated by household and light commercial activity. HVAC technicians and service pros install these during routine maintenance or as part of IAQ upgrades on forced-air systems.

This filter is suited for residential gas and electric forced-air systems, heat pumps, and packaged rooftop units that use a 20x23x1 nominal filter slot. The 1-inch thickness fits the majority of standard return-air filter grilles and media compartments sized for that nominal depth. Sold in a quantity of 10 per order, making it practical for multi-unit service routes or scheduled preventive maintenance stocking. MERV 11 performance is appropriate for homes with pets, mild allergy sensitivity, or moderate dust loads without significantly restricting airflow on properly sized systems.

Key Features

• MERV 11 filtration rating captures dust, pollen, mold spores, and fine particulates
• Nominal size 20x23x1 inches; actual size 19.5 x 22.5 x 0.75 inches for proper fit in standard filter tracks
• 1-inch depth fits the majority of residential return-air grilles and HVAC cabinets
• Pleated media design increases surface area for improved particle capture and longer service intervals
• Sold in a 10-pack for efficient stocking on multi-unit service routes

Compatibility

Designed as an OEM-style replacement pleated filter for residential and light commercial forced-air HVAC systems requiring a 20x23x1 nominal, 1-inch thick air filter.

Installation Notes

Air filters of this type are installed by HVAC technicians or qualified service professionals during routine maintenance. Always power down the air handler or furnace at the disconnect or breaker before opening the filter compartment. Confirm the actual filter slot dimensions against the 19.5 x 22.5 x 0.75 inch actual size before installation to ensure a proper seal with no bypass gaps. Inspect and replace on a schedule appropriate to system run time and site dust levels, typically every 60 to 90 days for MERV 11 media in average residential use.