Hayward SPX1091Z2 Hose Male Insert Adapter Replacement for Select Hayward Sand Filters (2 Pack) Insert adapter replacement Fits Hayward sand filter models s240pak1, s200pak1, s160tpak1 and pak3, s160t, s190t Also fits Hayward pro series sand filter models s164t, s166t Measures 1-1/2-inch Mip by 1-1/2-inch hose