Koch Filter P421230 Pleated Air Filter 12x30x2

Product Description

The KOCH FILTER P421230 is a pleated air filter designed for residential and light commercial HVAC systems that require a 12 x 30 x 2 inch filtration solution. The pleated media construction increases the effective surface area compared to flat-panel filters, improving particle capture across a range of airborne contaminants including dust, pollen, and lint. At 2 inches of depth, this filter fits systems specified for deeper media without modification. Licensed HVAC technicians and experienced service professionals handle installation as part of routine preventive maintenance.

This filter suits forced-air heating and cooling systems equipped with filter housings or return-air grilles sized for 12 x 30 x 2 inch media. The extended 30-inch width dimension accommodates larger return-air openings commonly found in residential applications with high-capacity air handlers. It is appropriate for systems requiring periodic filter replacement on a scheduled maintenance cycle.

Key Features

• Pleated media design increases particle capture surface area versus flat-panel filters
• 2-inch depth provides extended media volume for longer service intervals
• Nominal dimensions of 12 x 30 x 2 inches fit a wide range of standard filter slots
• Designed for forced-air HVAC systems requiring extended-width filtration

Compatibility

Designed as an OEM-style replacement pleated air filter for forced-air HVAC systems with filter housings or return-air grilles nominally sized for 12 x 30 x 2 inch media.

Installation Notes

Installation is performed by a licensed HVAC technician or a qualified service professional. Always set the thermostat to the off position and shut down system power at the disconnect or breaker before accessing the filter compartment. Install the filter with the airflow arrow on the frame pointing toward the blower. Inspect the filter housing for gaps or bypass paths and ensure a snug fit before restoring power.

Technical Specifications

• Filter Type: Pleated Air Filter
• Nominal Length: 30 inches
• Nominal Width: 12 inches
• Nominal Depth: 2 inches

Standard Information

• Brand: KOCH FILTER
• Manufacturer Part Number: P421230