G 3/4'' x 19mm Brass Hose barb with NBR Seal and Wing Nut 16 Bar [2 Pieces] | Tameson.co.uk
Female Thread Barb Hose Fitting-Connector 2PCS 8mm to 1/2 Inch BSP Brass Hose Barbed Joint Adapter Coupler Female Thread Pipe Adapter for Fuel Air Gas Water Oil : Amazon.co.uk: Garden
Sanpaint 4 Pack 3/4 Inch Brass Garden Hose Connector,Female to Female hose adapter,Male to Male hose adapter,Double Female with Dual Swivel (with 4 Washers) : Amazon.co.uk: Garden