HQRP 2 Foam Filter Sleeves for Shop-Vac QPS20, QPS225, QPS25, QPS30, QPS35, QPS40, QPL625, QPL650, QPM45, QPM45A, QM450A Wet Dry Vacuums + Coaster HQRP&reg; Foam Filter Sleeve + HQRP&reg; Coaster; Use on filter cage for vacuuming water, for picking up wet messes when used alone. Also required when using reusable disc style filters. Replaces Shop-Vac Foam Filter Sleeve Part # 9058500 / 905-85-00 / 90585. Required unless you are using a cartridge filter. 100% Compatible with Original filter. 2 weeks DOA replacement warranty!