Dutta Control Pvt Ltd. Offers Air Filter Regulator -AFR. Dutta Control Pvt Ltd. Supplies various types of cylinders, valves, FRLs, Connectors and hydro pneumatic pumps. The Air Filter Regulator -AFR is a unit where the Filter and the Regulator are combined into a single unit. The dual action diverter enables effective separation of the moisture in a condensate form. This Air Filter Regulator -AFR has a sintered bronze filtering element for filtering rust and condensate particle from the compressed air. Excessive condensate is easily drained by opening the drain. The pressure regulator is a diaphragm-operated.