aFe Power 24-91087 Air Filter High performance filter will outflow stock paper filter Washable and reusable for multiple cleaning cycles Constructed with 100% polyurethane on top and bottom Five layers of progressively finer mesh cotton gauze media 3-1/4Fx(9x6-1/2)Bx(6-3/4x5-1/2)Tx5-3/8 H