Multipure Aquadome Countertop Drinking Water System The Aquadome features a plastic housing and is designed for countertop use only. It connects directly to the sink faucet with an included hose and diverter valve (dual-hose design) that allows you to select filtered or unfiltered water. The Aquadome is intended as an easily-connected countertop-only drinking water system for those that do not require a below sink installation option. NOTE: The Aquadome is not designed to withstand the constant water pressure of a below sink installation; it cannot be installed or converted for below sink use. Housing: 9h x 6.5w x 9d, Filter Capacity: 750 gallons, Compatible Replacement Filter: CB6AD Multipure Independent Distributor, ID#391634