1/2" BSP Parallel Female, Oil X Activated, Carbon Purifier, Flow Rates @ 7 bar g (1100 psi g) ANR, 25 Litres per Second, 53 Cubic Feet per Minute, 90 Cubic Metres per Hour, Working temperature +1.5┬░C to +30┬░C, Maximum Working Pressure 16, Domnick Hunter