Koch Filter 76B0015N03 Pleated Air Filter 28x28x1 Geothermal

Product Description

The KOCH FILTER 76B0015N03 is a pleated air filter engineered for geothermal HVAC systems that require a 1-inch replacement filter in a 28 x 28 x 1 inch nominal size. Pleated media increases the effective filtration surface area compared to flat-panel filters, supporting reliable particle capture across a range of airborne contaminants including dust, pollen, and lint. The result is balanced filtration performance that helps protect system components while maintaining the airflow geothermal units depend on for efficient heat exchange. Licensed HVAC technicians and geothermal system service professionals are the primary installers of this filter type.

This filter is suited for residential and light commercial geothermal HVAC installations where a 28 x 28 x 1 inch filter slot is specified. Geothermal systems rely on consistent airflow through the air handler to transfer heat effectively between the ground loop and conditioned space. A properly sized pleated filter in good condition helps sustain that airflow while reducing the particulate load on coils and heat exchanger surfaces. Regular replacement on a schedule appropriate to the site environment is standard practice for maintaining system efficiency.

Key Features

• Pleated media construction increases filtration surface area compared to flat-panel filters
• Nominal size of 28 x 28 x 1 inch fits geothermal air handler filter slots requiring that dimension
• Designed to balance particle capture with adequate airflow for geothermal system operation
• 1-inch depth profile is a common replacement size for residential and light commercial air handlers
• Supports protection of coils and heat exchanger surfaces from particulate buildup

Compatibility

Designed as an OEM-style replacement pleated air filter for geothermal HVAC air handlers requiring a 28 x 28 x 1 inch filter.

Installation Notes

Air filter replacement in geothermal HVAC systems is performed by licensed HVAC technicians or qualified service professionals. Power down the air handler at the disconnect or thermostat before removing the existing filter to prevent debris from being drawn into the blower. Confirm the actual slot dimensions before installation, as nominal filter sizes may vary slightly from true dimensions. Ensure the filter is seated with the airflow arrow pointing in the direction of air movement toward the blower.

Technical Specifications

• Nominal Size: 28 x 28 x 1 inches
• Filter Type: Pleated
• Application: Geothermal HVAC
• Filter Depth: 1 inch

Standard Information

• Brand: KOCH FILTER
• Manufacturer Part Number: 76B0015N03