John Guest PM series 5/8" 9.5 mm adapter. Flat-sealing on the 5/8" BSP female thread side with flat washer included. Accepts 9.5 mm LLDPE tubing. Useful to connect your 9.5 mm beer tubing to a standard keg coupler (flat, combi, well, etc) with 5/8" beer threads.
Made in the UK from certified food safe grey acetal copolymer. After cleaning or disinfecting your fittings according to the cleaning product manufacturer instructions, always rinse the fitting with clean water directly afterwards.