Supply Of Modified Air Flow Filter With Regulator (prv) With 1/2" Bsp With Both Side Adopter (%bd%u201d X %bd%u201d) & (%bd%u201d X 1%u201d) Connector, With Rounded Plunger And Thermo Plastic Piston To Give 0.1 To 0.2 Kg/cm2 Pressure Drop Along With Pressure Gauge Marking At 2.5 To 3.5 Kg/cm2. Model Rfrsmr-4 Size-1/2" Bsp. Make-siemag