$64.99 Aprilaire 410 2410 1410 1610 1310 3410 Replacement Filter Alternative 1 Pack Box | eBay
Aprilaire 413 Filter Single Pack for Air Purifier Models 1410, 1610, 2410, 3410, 4400, Space 
Aprilaire 1410 16-Inch H x 25-Inch W - Media Air Cleaner - MERV 11
