11/32" Diam, 5/16" Shank, Diam, 4 Flutes, Straight Shank, Interchangeable Pilot Counterbore MPN:MIT-435-4

The foam air filter is an economical and efficient solution that provides superior particulate filtration for HVAC and refrigeration systems, extending the lifespan of expensive equipment while reducing cleaning or replacement frequency. The 24 x 13.5 x 0.75-inch size accommodates standard systems, making it an ideal choice for business owners to safeguard their operations' air quality at a cost-effective rate without disrupting normal operations with regular filter replacements.