Filter King AF18x24x1-M13 Merv 13 Air Filter 18x24x1

Product Description

The FILTER KING AF18x24x1-M13 is a MERV 13 pleated air filter designed for residential and light commercial HVAC systems. It captures fine particulates including dust, pollen, mold spores, pet dander, and fine particles associated with smoke and vehicle exhaust. With a nominal size of 18 x 24 x 1 inches and an actual size of 17.5 x 23.5 x 0.75 inches, this filter fits standard 1-inch filter slots without modification. The MERV 13 rating provides enhanced filtration performance suited for applications where air quality is a priority, including homes with allergy-sensitive occupants or facilities requiring tighter particulate control.

This filter is intended for use in forced-air furnace and air handler systems that accept 1-inch pleated panel filters in the 18 x 24 nominal slot. It is appropriate for residential split systems, packaged units, and light commercial air handlers where improved indoor air quality and higher filtration efficiency are required. HVAC technicians commonly specify MERV 13 filters in systems with blower capacity adequate to handle the added static pressure of higher-efficiency filtration media.

Key Features

• MERV 13 rating captures fine particulates including smoke, bacteria carriers, and fine dust
• Pleated media design increases surface area for improved airflow and dust-holding capacity
• Nominal size 18 x 24 x 1 inches fits standard 1-inch filter slots
• Actual dimensions of 17.5 x 23.5 x 0.75 inches allow proper seating in filter track
• Sold in a quantity of 10 per order, reducing restocking frequency on service accounts

Compatibility

Designed as an OEM-style replacement pleated panel filter for residential and light commercial forced-air HVAC systems requiring a nominal 18 x 24 x 1 inch filter with a 1-inch slot.

Installation Notes

Installation of this filter should be performed by a qualified HVAC technician or a knowledgeable end user familiar with their air handling equipment. Always power 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 direction of airflow through the system before seating the filter. Systems with older or undersized blower motors should be evaluated for adequate static pressure tolerance before upgrading to MERV 13 media.