Generalaire FP20X20X5 Merv 8 Air Filter 20x20x5

Product Description

The GENERALAIRE FP20X20X5 is a MERV 8 rated pleated air filter designed for use in forced-air HVAC systems requiring a 20x20x5 inch filter. At MERV 8, it captures a broad range of common airborne particles including dust, pollen, mold spores, and pet dander, making it a solid choice for residential and light commercial applications. The FLATPAC design delivers reliable filtration performance in deep-media filter housings and media cabinets that accept 5-inch filters. HVAC technicians and service professionals install this filter as a scheduled maintenance replacement in whole-home filtration systems.

This filter fits 20x20x5 inch deep-media filter cabinets commonly found in residential forced-air gas and electric systems. It is well suited for installations where extended filter change intervals are preferred over standard 1-inch filter configurations. The thicker media bed of a 5-inch filter typically supports longer service life between changes compared to thin panel filters, reducing maintenance frequency on occupied residential or light commercial properties.

Key Features

• MERV 8 filtration rating captures dust, pollen, mold spores, and pet dander
• FLATPAC pleated media construction for consistent airflow and particle capture
• 20x20x5 inch nominal size fits deep-media filter cabinets and media air cleaners
• 5-inch media depth supports extended replacement intervals compared to 1-inch panel filters
• Suitable for residential and light commercial forced-air HVAC applications

Compatibility

Designed as an OEM-style replacement for deep-media filter cabinets and whole-home media air cleaners accepting a 20x20x5 inch filter with MERV 8 performance.

Installation Notes

Installation is performed by HVAC technicians or qualified service professionals during routine maintenance calls. Always set the thermostat to off and shut down the air handler or furnace before replacing the filter. Confirm airflow direction arrow on the filter frame aligns with system airflow before seating the filter in the cabinet. Verify the cabinet door seals fully after installation to prevent bypass air around the filter media.

Technical Specifications

• Filter Size (Nominal): 20x20x5 inches
• MERV Rating: MERV 8
• Filter Style: FLATPAC Pleated

Standard Information

• Brand: GENERALAIRE
• Manufacturer Part Number: FP20X20X5