4pcs Bio-Sponge Filter Replacement for 6W 15W Ultra Quiet Fish Tank Filter 4-… on July 26, 2026 July 26, 2026 #707 in Aquarium Filters. Size: 2sponge+2bag carbon for 25W 30W. Manufacturer: JackSupermall. MPN: Does not apply. Manufacturer : JackSupermall.