Hayward ECX4000C Clamp Assembly with Hardware Replacement for Hayward Perflex Extended-Cycle D.E. Filter Clamp assembly replacement Fits hayward perflex extended-cycle d.e. filter models i_pfppts, ec30, ec40, ec40ac, ec40c90 series Include 2 bolts, 2 nuts, 2 spacers and 4 washers Weight 3.7-pound