Hoover Linx Stick Vac Foam Filter Hoover Linx Stick Vac Filter. Foam Filter 1 Layer, 3 1/8" Diameter Fits Model BH50010 Also fits hand vac models: BH50015, BH50030 This is a generic foam filter on both sides 410044001 43-2355-06 410044001 Stick Vac Foam Filter