99.99% metal frame HEPA filters provide replacement particulate filtration for equipment specifying this efficiency rating and frame construction. Spycor Environmental lists Glasfloss models in 5-7/8-inch and 11-1/2-inch depths, including high-capacity, low-capacity, and double-gasket options.
Facility engineers and HVAC contractors can compare actual dimensions, rated airflow, pressure drop, and gasket arrangement. Match the selected filter to the air handler or housing specifications, including installation orientation and sealing requirements, before ordering. Confirm capacity from the product specifications rather than dimensions alone.