Aaf/flanders 10055.011212 Fiberglass Furnace Filter 12x12x1

Product Description

The AAF/FLANDERS 10055.011212 is a flat-panel spun fiberglass disposable furnace filter designed for residential forced-air heating and cooling systems. Measuring 12 inches x 12 inches x 1 inch, this filter carries a MERV 4 rating and captures common airborne particles including household dust and lint. It is sold in a case of 12 filters, each rated for approximately 30 days of service under normal operating conditions. The flat-panel construction uses no metal media retainers, simplifying disposal at the end of each service interval. HVAC technicians and homeowners install this filter as a routine maintenance item to maintain basic airflow protection in furnace and air handler return-air applications.

This filter is suited for residential gas furnaces, electric furnaces, and air handlers where a low-restriction, fiberglass flat-panel filter is specified. It is a common fit in older furnace cabinets and equipment designed around standard 1-inch filter slots. The 30-day replacement cycle makes it appropriate for high-use periods or installations where filter checks are part of a regular service schedule. At MERV 4, it provides general-purpose filtration without significantly restricting system static pressure, which matters in equipment with lower-capacity blowers.

Key Features

• MERV 4 rating captures dust, lint, and large airborne particles
• Spun fiberglass flat-panel construction with no metal media retainers for tool-free disposal
• 12 inches x 12 inches x 1 inch nominal size fits standard 1-inch filter slots
• Approximately 30-day service life under normal residential operating conditions
• Sold as a case of 12 individual filters
• Disposable design requires no cleaning or re-oiling

Compatibility

Designed as an OEM-style replacement flat-panel fiberglass filter for residential gas furnaces, electric furnaces, and air handlers that accept a 12 x 12 x 1 inch filter in a standard 1-inch filter rack or built-in cabinet slot.

Installation Notes

A licensed HVAC technician or qualified installer should set the thermostat to the off position and shut down system power before replacing any air filter. Confirm the airflow direction arrow on the filter frame aligns with the direction of airflow toward the blower before securing the access panel. At MERV 4, this filter is not a substitute for higher-efficiency filtration where system IAQ requirements call for MERV 8 or above. Replace on or before the 30-day interval to prevent airflow restriction and blower strain.

Technical Specifications

• Filter Dimensions: 12 inches x 12 inches x 1 inch
• MERV Rating: 4
• Filter Media: Spun fiberglass
• Frame Style: Flat panel, no metal media retainers
• Service Life: Approximately 30 days
• Filtration Target: Dust, lint
• Package Quantity: 12 filters per case
• Unit of Measure: EA
• Weight: 2.8 pounds (case)

Standard Information

• Brand: AAF/FLANDERS
• Manufacturer Part Number: 10055.011212