Non Genuine replacement filter cartridge to suit Questa Clearflow 1000 length 383mm x outside diameter of 230mm 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