For 410 Replacement Filter 2 PACK /16x 25 x 4 Air Filter For 410 Air Filter Whole House Air Purifiers 1410, 1610, 2410, 2416, 3410, 4400 MERV11 Furnace Filter
Optimum performance, It is recommended to replace the filter every 6-12month (Depend on Uses).
Easy to Install: Enjoy simple, hassle-free installation in three easy steps.