Almost any combination of plumbing sizes can be achieved with our unique range. Manufactured from glass-reinforced nylon. Temperature range -40°C to +130°C (-40°F to +266°F). Maximum working pressure 6 bar (84 lb). Resistant to Coolant additives, Petrol, Diesel, Oil, LPG. Simply choose the parts you need, add the corresponding quantity of ‘O’ rings and Retaining clips and push it all together with a little light oil or vaseline. All diameters are O.D.