Koch Filter P411320 Pleated Air Filter 13x20x1 in

Product Description

The KOCH FILTER P411320 is a pleated air filter sized at 13 inches by 20 inches by 1 inch, designed for residential and light commercial HVAC systems that require non-standard width filtration. The pleated media construction increases surface area compared to flat panel filters, supporting effective particle capture while sustaining adequate airflow through the air handler or furnace. This filter is a direct drop-in replacement for systems calling for the 13x20x1 nominal size and is installed by HVAC technicians or knowledgeable service personnel during routine maintenance intervals.

This filter fits air handlers, furnaces, and fan coil units that accept a 13x20x1 nominal filter size. It is well suited for residential applications where non-standard duct or cabinet dimensions require a narrower filter width than the common 14x20x1 or 16x20x1 sizes. Install during scheduled filter change intervals or whenever static pressure readings suggest restricted airflow through the return air side of the system.

Key Features

• Pleated media design increases filtration surface area over flat panel filters
• Non-standard 13-inch width suits HVAC cabinets that reject common nominal sizes
• 1-inch depth fits standard single-slot filter tracks and return air grilles
• Supports proper system airflow while capturing airborne particulates

Compatibility

Designed as an OEM-style replacement pleated air filter for residential and light commercial HVAC systems, air handlers, and furnaces that accept a 13 inches by 20 inches by 1 inch nominal filter size.

Installation Notes

Set the thermostat to off and shut down the air handler or furnace at the disconnect before replacing the filter. Note the airflow direction arrow printed on the filter frame and orient it so the arrow points toward the blower. HVAC technicians should confirm the actual cabinet opening dimensions before ordering non-standard sizes to ensure proper fit and avoid air bypass around the filter media.

Technical Specifications

• Filter Dimensions: 13 inches x 20 inches x 1 inch
• Filter Type: Pleated
• Application: HVAC Air Handler, Furnace, Fan Coil

Standard Information

• Brand: KOCH FILTER
• Manufacturer Part Number: P411320