Gardena drainage valve set: Valve set for manual drainage, 3 attachments for Original System Hose Connectors, Original System Fitting and Profi System Fitting (2770-20) : Amazon.co.uk: Garden
Gardena Premium Hose Connector, 13 mm (1/2 inch) - 15 mm (5/8 inch): Adapter for taps, frost-resistant, (18255-20) : Amazon.co.uk: Garden
3-Way Y Coupling For Hoses – Blue Diamond Garden Centre Ltd