Mann Hummel 20x20x1f Fiberglass Air Filter Merv 4

Product Description

The MANN HUMMEL 20x20x1f is a fiberglass panel air filter designed for forced-air HVAC systems in residential and light commercial applications. Rated MERV 4, this filter captures large airborne particles such as dust, pollen, and lint, protecting blower components and heat exchangers from debris buildup. At 20 x 20 x 1 inches, it fits standard filter slots without modification. HVAC technicians and service contractors typically install this filter during routine maintenance calls or system commissioning. The fiberglass media construction offers low resistance to airflow, making it well suited for systems where maintaining static pressure is a priority.

This filter is intended for use in residential furnaces, air handlers, and packaged HVAC units that accept a 20 x 20 x 1 inch filter. It is a standard replacement filter appropriate for systems where basic particulate protection is required and filter changes are performed on a frequent schedule. MERV 4 filtration is commonly specified for systems with older or less robust blower motors where high-efficiency media would restrict airflow.

Key Features

• MERV 4 rating captures large particles including lint, dust, and pollen
• Fiberglass media provides low airflow resistance and minimal static pressure drop
• Standard 20 x 20 x 1 inch dimensions fit common residential and light commercial filter slots
• Suitable for use in furnaces, air handlers, and packaged HVAC units
• Designed as a routine-maintenance replacement filter for frequent change intervals

Compatibility

Designed as an OEM-style replacement fiberglass panel filter for residential and light commercial forced-air HVAC systems accepting a 20 x 20 x 1 inch filter.

Installation Notes

Installation is performed by licensed HVAC technicians or qualified service personnel. Set the system thermostat to the off position and verify the blower has stopped before removing the existing filter. Insert the new filter with the airflow direction arrow pointing toward the blower or furnace cabinet, as marked on the filter frame. Follow local codes and equipment manufacturer guidelines for recommended filter change intervals.

Technical Specifications

• Height: 20 inches
• Width: 20 inches
• Depth: 1 inch
• MERV Rating: 4
• Filter Media: Fiberglass
• UNSPSC Code: 40161505

Standard Information

• Brand: MANN HUMMEL
• Manufacturer Part Number: 20x20x1f