The Magnet 310 replacement filter is an expandable filter with a MERV 11 efficiency rating. It fits the following models: 1310, 2310, 3310 and 4300. Each filter comes with 4 wire supports and assembly instructions. To assemble filter, simply slide the wire supports in the indicated notches on each end and slide fully assembled filter into air cleaner cabinet.
Actual size: 21 x 18-3/4 x 4-1/8To watch assembly instruction video, click here.Made by Magnet / Patent PendingThis product is not manufactured or distributed by Research Products Corporation, owner of the registered trademark Aprilaire.
The Magnet logo on this page signifies that this product is a factory direct replacement to the OEM branded filter.