15mm Compression fitting to copper/plastic one end

1/2" flat face BSP thread (measures approx 20mm) the other end

Ideal for screwing monobloc tap flexis straight onto the end

Most plumbers/DIY'ers usually remove the nut and olive from a standard isolation valve and screw the flexi on. This is not the correct way to do this! Removing the olive reveals a sharp beveled edge that can easily split the washer if over tightened, causing a leak