Non Genuine replacement filter cartridge to suit Questa Clearflow 500 Length 284mm x outside diameter of 210mm top hole diameter of 102mm and bottom hole diameter of 102mm **Please check your measurements as well as the information on the cartridge filter, as we cannot accept responsibility for incorrect orders. We will accept returns of cartridges in original box and condition but postage will be at the customers expense. *PHOTO IS FOR ILLUSTRATION PURPOSES ONLY