Air Filter Factory Replacement for 401, 2400, SG4PR-2 Aprilaire Space-Guard Accordion Furnace Filters 2-Pk

2-Pk Compatible with Aprilaire Space-Guard 401, 2400, SG4PR-2 Accordion Furnace Filters by Air Filter Factory Package Contains Two Filters Designed and Distributed Solely By Air Filter Factory UPC 842477120184 MERV 11 Media Lasts Up To 1 Year Made In The USA This Listing Is For The Pleated Accordion Style Media Only, Combs Are Not Included