Hose snap lock tap connector 1/2" & 3/4" – Freeflush Water Management Ltd.
Brass Garden Outdoor Hose Tap Connector G 1/2 Inch Thread Female to GHT 3/4 Inch Adapter 2-in-1 Threaded Quick Connector for Hosepipe Fittings, Water Threaded Faucet Adapter : Amazon.co.uk: Garden
Hozelock 20-24mm Mixer Tap Connector - Screwfix
Kitchen Mixer Tap Hose Connector Brass Hose Tap Connector for Kitchen Sink, Outside Garden Hose Pipe Adapter for Kitchen Tap Bathroom Sink, 22mm Female 24mm Male Threaded Tap Connector Fittings : Amazon.co.uk:
Brass Hose Tap Connector 1/2 Inch to 3/4 Inch, Garden Water Hose Thread Pipe Tap Faucet Adapter : Amazon.co.uk: Garden