High quality reinforced 8mm (5/16″) bore. Working pressure 20bar. 6mm (1/4″) BSP female nut end fittings. Conforms to ISO 2398:2006. High quality reinforced 8mm (5/16″) bore. Working pressure 20bar. 6mm (1/4″) BSP female nut end fittings. Conforms to ISO 2398:2006.