M MINGLE Garden Hose Adapter, 3/4 Inch GHT to 1/2 Inch NPT, Double Male and Female Brass Connector, with Extra 8 Washers : Amazon.co.uk: Garden
flintronic 2 Pack Universal Kitchen Tap Connector, Universal Hose Connector Faucet with M22 Female Thread And M24 Male Thread, Water Hose Tap Connector Adapter for Garden Kitchen Washing Machine : Amazon.co.uk: Garden
M MINGLE Garden Hose Adapter, Male to Male, Female to Female, 3/4'' Brass Connector, 4-Pack with Extra 4 Washers : Amazon.co.uk: Garden
Brass Tap Connector Adaptor Universal Garden Water Fit Hose Pipe Tap Female Male | eBay