Sealey air filter regulator 3 8 bsp male 1 4 bsp male sealey sa4fr 38 heavy duty aluminium alloy valve assemblies integral filters and water traps on filter regulators airflow control knob can be locked in position to prevent accidental adjustment of pressure sa2fr sa3fr sa4fr 38 and sa5 rg 14 feature large gauges dual marked in psi and bar individual compressed air outlets are fitted with outlet shut off valve filter regulators are suitable for direct mounting onto compressors or c