uxcell Green 3 Layers Mushroom Dry Air Filter Sponge Replacement 245x20x15mm Product Name : Mushroom Air Filter Sponge;Inside Diameter : 15mm/0.6" Outside Diameter : 245mm/9.6";Height : 20mm/0.8" Material : Sponge;Color : Green Net Weight : 22g Package : 1 x Mushroom Air Filter Sponge