Hayward SPX1480C Union Nut Replacement for Select Hayward Unions and Filter Union nut replacement Fits hayward self align unions and perflex extended-cycle d.e. filter models sp1480, sp1482, sp1484, sp1486, sp1485, sp1481, ec65 system iii Also fits hayward pro series, s200 and s240 sand filter models s200pak2, s200pak3, s240pak2, s240pak3 and system ii Weighs 10.6-Pound