Generic Cartridge Filter Locking Knob O-Ring for C900, 55006700, 47021100R pipe-size_Variable Range This is a Hayward SPX3020AA

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Cartridge and Earthworks D

Generic Cartridge Filter Locking Knob O-Ring for C900, 55006700, 47021100R pipe-size_Variable Range This is a Hayward SPX3020AAThis is a Generic Filter Locking Knob O Ring O 288 replacement with dimensions for various pool filter cartridges. The dimensions work with Hayward C900, Hustler A211, Jacuzzi 47021100R, Leisure Bay 111902, Pentair American 55006700, 57006800, Sta Rite Swimquip 355051223, and Waterway 7111913, 8050117SD.