Koch Filter P412525 Pleated Air Filter 25x25x1

Product Description

The KOCH FILTER P412525 is a 1-inch pleated air filter designed for residential and light commercial HVAC systems that require a 25 x 25 x 1 inch square-format filter. Pleated media construction increases surface area compared to fiberglass panel filters, allowing the filter to capture a greater volume of airborne particles before requiring replacement. Typical contaminants captured include household dust, lint, pollen, and larger airborne debris. This filter is installed by HVAC technicians or knowledgeable building maintenance personnel as part of routine preventive maintenance.

The P412525 fits air handlers, furnaces, and fan coil units that accept a 25 x 25 x 1 inch filter. Its square format is commonly found in ceiling return-air grilles, side-panel return cabinets, and dedicated filter housings in both residential and light commercial installations. Regular filter replacement on the correct service interval is essential to maintaining system efficiency and protecting the blower and coil from dust accumulation.

Key Features

• Pleated media design increases filtration surface area for improved particle capture and extended service life
• 25 x 25 x 1 inch square format fits a wide range of standard HVAC filter slots and return grilles
• 1-inch depth is compatible with single-slot filter tracks in air handlers and furnace cabinets
• Captures dust, lint, pollen, and larger airborne particulates to protect system components
• Designed for straightforward replacement without tools, reducing maintenance time

Compatibility

Designed as an OEM-style replacement pleated air filter for residential and light commercial HVAC systems requiring a 25 x 25 x 1 inch filter size.

Installation Notes

Filter replacement is a standard HVAC maintenance task performed by licensed HVAC technicians or qualified maintenance personnel. Before replacing the filter, set the thermostat to off and confirm the air handler or furnace blower has stopped. Insert the filter with the airflow direction arrow on the frame pointing toward the blower. Follow local HVAC maintenance codes and the equipment manufacturer's recommended replacement interval.

Technical Specifications

• Filter Dimensions: 25 x 25 x 1 inches
• Filter Type: Pleated

Standard Information

• Brand: KOCH FILTER
• Manufacturer Part Number: P412525