Airx filters 16x28x6 merv 8 hvac ac furnace air filter replacement for aprilaire space-gard 401, dust 2-pack, made in the usa

Easy selection, multi-pack air filter compatible: airx filters 16x28x6 air filter will replace aprilaire space-gard 401 air filter and compatible with aprilaire space-gard 2400 air cleaner