Koch Filter P412025 Pleated Air Filter 20x25x1 Merv 8

Product Description

The KOCH FILTER P412025 is a MERV 8 pleated air filter sized 20 x 25 x 1 inches, designed for routine filter replacement in residential and light-commercial HVAC systems. The filter uses extended-surface synthetic media folded into dense pleats and supported by an expanded metal backing, which increases dust-holding capacity while keeping airflow resistance low. A moisture-resistant frame adds structural durability in humid return-air environments. At MERV 8, this filter captures airborne particles including dust, pollen, and similar contaminants before they reach downstream coils, blower wheels, and heat exchangers. Licensed HVAC technicians and facilities maintenance staff install this filter during scheduled preventive maintenance intervals.

The P412025 fits standard 20 x 25 x 1 inch filter slots found in residential forced-air systems and light-commercial air handlers. It is suited for applications where moderate particle filtration and low static pressure drop are both priorities, making it appropriate for systems with standard PSC or ECM blower motors. This size is one of the most common in residential return-air grilles and single-zone air handler cabinets, making it a practical stock item for service technicians.

Key Features

• MERV 8 rated synthetic pleated media captures dust, pollen, and comparable airborne particles
• Extended-surface pleat design increases dust-holding capacity without significantly raising static pressure
• Expanded metal backing reinforces media and prevents collapse under normal airflow conditions
• Moisture-resistant frame maintains structural integrity in humid return-air plenums
• Standard 20 x 25 x 1 inch nominal size fits a wide range of residential and light-commercial filter tracks

Compatibility

Designed as an OEM-style replacement pleated air filter for residential and light-commercial HVAC systems accepting a nominal 20 x 25 x 1 inch filter.

Installation Notes

Filter replacement is performed by HVAC technicians or trained maintenance personnel. Always shut down the air handler or furnace at the disconnect before removing or inserting the filter. Confirm airflow direction arrows on the filter frame align with the direction of airflow toward the blower or coil. Follow the equipment manufacturer's recommended replacement interval, typically every 60 to 90 days under normal residential use, though higher-dust environments may require more frequent changes.

Technical Specifications

• Filter Size (Nominal): 20 x 25 x 1 inches
• MERV Rating: 8
• Media Type: Extended-surface synthetic pleated
• Backing: Expanded metal
• Frame: Moisture-resistant
• Application: Residential and light-commercial HVAC

Standard Information

• Brand: KOCH FILTER
• Manufacturer Part Number: P412025