M6 8 10 12-20 Metric 1/8" 1/4" 3/8" 1/2" BSP Female Male 6 8 10 12 14-20mm Hose Barb Pipe Fitting Coupler 304 Stainless Steel

M6 8 10 12-20 Metric 1/8" 1/4" 3/8" 1/2" BSP Female Male 6 8 10 12 14-20mm Hose Barb Pipe Fitting Coupler 304 Stainless Steel

Aliexpress UK