Koch Filter P412425 Pleated Air Filter 24x25x1

Product Description

The KOCH FILTER P412425 is a 1-inch pleated air filter designed for residential and light commercial HVAC systems requiring standard panel filtration. The pleated media construction increases usable surface area compared to flat fiberglass panels, improving particle capture efficiency while maintaining acceptable static pressure across the filter face. Sized at 24 inches by 25 inches by 1 inch, this filter fits a wide range of air handlers, furnaces, and package units that accept a standard 1-inch panel filter. Installation is straightforward and requires no tools.

This filter is suited for forced-air HVAC systems in residential homes and light commercial buildings. It is typically installed in the return-air grille or filter rack of a gas furnace, heat pump air handler, or rooftop package unit. Service technicians and HVAC installers commonly stock pleated 1-inch filters in standard dimensions like this one for routine preventive maintenance calls and filter change-out programs.

Key Features

• Pleated media design increases surface area for improved particle capture compared to flat-panel filters
• Standard 1-inch depth fits common residential and light commercial filter racks and grilles
• 24 x 25 x 1 inch nominal sizing covers a wide range of HVAC equipment
• Drop-in replacement format requires no tools or modifications for installation

Compatibility

Designed as an OEM-style replacement pleated panel filter for residential and light commercial HVAC systems accepting a 24-inch by 25-inch by 1-inch filter.

Installation Notes

Pleated panel filters are installed and serviced by HVAC technicians as part of routine preventive maintenance. Always set the system thermostat to the off position and confirm the air handler or furnace blower has stopped before opening the filter compartment. Verify airflow direction arrows on the filter frame align with the direction of airflow toward the blower. Follow local codes and equipment manufacturer guidelines for recommended filter change intervals.

Technical Specifications

• Filter Length: 24 inches
• Filter Width: 25 inches
• Filter Depth: 1 inch
• Media Type: Pleated

Standard Information

• Brand: KOCH FILTER
• Manufacturer Part Number: P412425