Non Genuine replacement filter cartridge to suit Davey CF150, tank require 2 cartridges (PRICE IS FOR ONE) Length 457mm x outside diameter of 185mm top hole diameter of 75mm and bottom hole diameter of 75mm **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