Specifications: Made with fine ceramic, to dispense CO2 in mist form Compact design, durable construction 2 suction cups included Can be cleaned Instructions: When installing pressure pipes from the CO2 regulator, the pipe should be longer than the distance installed. Open the CO2 regulator slowly. A certain quantity wil first accumulate in gauge before starting to dispense. Determine the amount of CO2 required and Ph value, add in the adequate amount of CO2 as needed. Product Dimensions: 1.75″ L x 1.5″ W x 1.25″ H