General Filters 9312 Microfiber Replacement Cartridge

Product Description

The General Filters 9312 is a microfiber replacement filter cartridge designed for use with compatible whole-house air filtration units. It incorporates an integrated BioGasket, a treated sealing gasket that helps reduce microbial growth at the filter perimeter. The cartridge replaces a spent or fouled media element without requiring replacement of the full filter housing, making it a practical service component for HVAC technicians and indoor air quality contractors performing routine filter maintenance.

The 9312 cartridge with BioGasket is intended for residential whole-house filtration applications. It is matched to the General Filters 77B filter housing. The microfiber media provides mechanical filtration of airborne particulates including dust, pollen, and debris carried through the return-air duct system. This cartridge is a direct service replacement installed during scheduled filter change intervals.

Key Features

• Microfiber filter media for effective mechanical particulate capture
• Integrated BioGasket to help limit microbial growth at the filter seal
• Drop-in replacement cartridge design — no housing replacement required
• Designed to fit the General Filters 77B filter unit

Compatibility

Designed as a replacement cartridge for the General Filters 77B whole-house air filtration unit.

Installation Notes

Installation is typically performed by an HVAC technician during routine preventive maintenance. Power down or set the air handler to the off position before accessing the filter housing. Follow the housing manufacturer instructions for cartridge orientation and seating to ensure the BioGasket seals correctly against the housing frame. Confirm the cartridge is fully seated before restoring system operation.

Technical Specifications

• Filter Media: Microfiber
• Gasket Type: BioGasket

Standard Information

• Brand: General Filters
• Manufacturer Part Number: 9312