Gardena Hose Connector Set 13 mm (1/2 inch) and 15 mm (5/8 inch): For the beginning and end of the hose, connector to fit all Original system parts, UV and frostproof (18279-20) : Amazon.co.uk: Garden
GARDENA tap connector 26.5 mm (G 3/4 inch): Adapter for connecting a water hose, anti-splash technology, frost-proof, Original System, packed loose (18221-20) : Amazon.co.uk: Garden