Connect your 18mm and 12mm hoses with the Hoselink 12mm to18mm Converter Set.
Containing a 12mm Accessory Connectors and 18mm Tap Connector all you need to do is screw the two fittings together and you are ready to go!
Please note the converter is designed to work with hoses fitted with Hoselink Connectors.
All Hoselink fittings are BPA and lead free