Hayward RCX78005 Filter Bottom Lid Gasket Replacement for Select Hayward Tigershark Commercial Cleaners Filter bottom lid gasket replacement Fits hayward tigershark and qc commercial cleaner models rc9956cc, rc9965cc, rc9950a, rc9950gr, rc9950, rc9990gr, rc9990, rc9990a Also fits tigershark plus cleaner model rc9955gr Weighs 2.6-pound