Filter King AF20X25X5-HW-M8 Merv 8 Air Filter 20x25x5

Product Description

The FILTER KING AF20X25X5-HW-M8 is a MERV 8 pleated air filter designed for whole-house HVAC systems. Rated at MERV 8, it captures a broad range of airborne particles including dust, pollen, mold spores, and lint, making it a reliable choice for residential forced-air systems. The nominal size is 20x25x5 inches, with actual dimensions of 19.875 x 24.75 x 4.25 inches. The pleated media design increases surface area relative to flat-panel filters, supporting longer service intervals while maintaining adequate airflow through the system. Licensed HVAC technicians and knowledgeable homeowners typically handle installation.

This filter is suited for whole-house air handler and furnace applications that accept a 20x25x5 nominal deep-media filter slot. The 4.25-inch actual depth makes it compatible with dedicated whole-house filter cabinets and media filter housings designed for that nominal thickness. It is appropriate for residential installations where MERV 8 filtration meets the system design requirements and where filter changeout intervals of several months are preferred over thinner one-inch filters. Sold in a quantity of 10 per pack, it provides an extended supply for regular maintenance cycles.

Key Features

• MERV 8 rating captures dust, pollen, mold spores, and lint-sized particles
• Pleated media construction increases effective filtration surface area
• Nominal size 20x25x5 inches fits whole-house deep-media filter cabinets
• Actual dimensions 19.875 x 24.75 x 4.25 inches for precise cabinet fit
• Pack of 10 filters supports multiple scheduled maintenance intervals
• Designed for residential forced-air furnace and air handler systems

Compatibility

Designed as an OEM-style replacement for whole-house HVAC media filter housings and cabinets that accept a nominal 20x25x5 deep-media air filter.

Installation Notes

Installation is typically performed by a licensed HVAC technician or a qualified homeowner following the equipment manufacturer guidelines. Always shut down the air handler or furnace at the disconnect or thermostat before removing or installing the filter. Confirm airflow direction arrows on the filter frame align with the direction of airflow into the blower. Check the filter cabinet seal and housing gaskets for wear during each filter replacement to maintain system efficiency.