British Made 5/16" Brass Hose Repair Fitting 8Mm Hose Connector - Huddersfield Gas
Yoebor Brass Reducing Hose Barb Splice T-Fitting, Reducer Tee Union Mender Joiner, 16mm Barb x 10mm Barb x 16mm Barb, 5/8" x 3/8" x 5/8" Hose ID (Pack of 2) : Amazon.co.uk:
SS 5/8" Female to 1/2" Male Adaptor
EDGE INDUSTRIAL 5/8" X 1/2" Hose ID Brass Barb Reducer SPLICER Fitting Fuel / AIR / Water / Oil / Gas / WOG (Qty 1) : Amazon.co.uk: DIY & Tools
5/8 x 3/4 x 1/2 Inch Outside Tap Adapter for Garden Hose Connector