Suits Baker Hydro HM72 Measurements 745mm high x 178mm diameter, knob on one end 42mm and spigot on other end 40mm **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