Koch Filter P422525 Pleated Air Filter 25x25x2

Product Description

The KOCH FILTER P422525 is a 2-inch pleated air filter sized at 25 x 25 inches, designed for residential and light commercial HVAC systems that require a square-format filter with extended depth. The 2-inch pleat construction increases media surface area compared to standard 1-inch filters, which translates to greater dust holding capacity and longer service intervals between replacements. Typical installers include HVAC technicians performing preventive maintenance and facility staff managing air handling units. The filter integrates into standard filter racks or return-air grille housings that accept a 25 x 25 x 2-inch media size.

This filter is suited for forced-air heating and cooling systems where a 25 x 25 x 2-inch slot is specified. The increased depth makes it appropriate for applications that demand better particulate capture efficiency without sacrificing airflow, including residential central air systems, light commercial air handlers, and fan coil units. It is typically installed during routine filter maintenance cycles aligned with manufacturer or facility management schedules.

Key Features

• 25 x 25 x 2-inch dimensions accommodate square filter housings requiring added media depth
• Pleated media construction increases surface area for higher dust holding capacity
• Extended service intervals compared to standard 1-inch flat-panel filters
• Designed to maintain adequate airflow through the media bed during normal system operation
• Suitable for forced-air residential and light commercial HVAC applications

Compatibility

Designed as an OEM-style replacement for residential and light commercial HVAC systems accepting a 25 x 25 x 2-inch pleated air filter.

Installation Notes

Installation should be performed by a licensed HVAC technician or qualified maintenance personnel. Set the system thermostat to the off position and shut down the air handler before removing the existing filter. Confirm airflow direction arrows on the filter frame are aligned with system airflow before seating the filter in the housing. Inspect the filter rack for gaps or bypass leakage after installation to ensure full filtration coverage.

Technical Specifications

• Filter Length: 25 inches
• Filter Width: 25 inches
• Filter Depth: 2 inches
• Filter Media Type: Pleated

Standard Information

• Brand: KOCH FILTER
• Manufacturer Part Number: P422525