Koch Filter P411020 Pleated Air Filter 10x20x1

Product Description

The KOCH FILTER P411020 is a 1-inch pleated air filter sized at 10 inches by 20 inches by 1 inch, designed for standard residential HVAC applications. Pleated media construction provides a larger surface area than flat panel filters, supporting improved particulate capture across the filter face while maintaining consistent airflow through the air handler or furnace. Licensed HVAC technicians and knowledgeable homeowners install this filter as a routine maintenance replacement in forced-air systems. The pleated design balances filtration efficiency with static pressure, keeping systems running within normal operating parameters between service intervals.

This filter fits residential forced-air heating and cooling systems that accept a 10-inch by 20-inch by 1-inch nominal filter. Typical install locations include return-air grilles, filter slots on upflow and downflow gas furnaces, and air handler cabinets. It is suited for single-family residential applications where a standard 1-inch pleated replacement is specified by the equipment manufacturer or service technician.

Key Features

• Pleated media construction increases surface area for improved particle capture compared to flat fiberglass panels
• Nominal size of 10 inches by 20 inches by 1 inch fits a wide range of standard residential filter slots
• Maintains consistent airflow to protect blower motors and heat exchangers from dust buildup
• Drop-in replacement format requires no tools or modifications for installation

Compatibility

Designed as an OEM-style replacement pleated air filter for residential forced-air HVAC systems accepting a nominal 10-inch by 20-inch by 1-inch filter.

Installation Notes

Installation is typically performed by a licensed HVAC technician or a qualified homeowner during routine maintenance. Always set the system thermostat to off and confirm the blower has stopped before removing the old filter. Insert the replacement filter with the airflow arrow on the frame pointing toward the blower or air handler. Follow the equipment manufacturer's recommended replacement interval and local codes for scheduled HVAC maintenance.

Technical Specifications

• Filter Size (Nominal): 10 x 20 x 1 inches
• Filter Type: Pleated
• Application: Residential HVAC

Standard Information

• Brand: KOCH FILTER
• Manufacturer Part Number: P411020