Johnson Controls A-4000-1037 Filter the switch automatically closes the

the switch automatically closes the circuit

Rugged Construction: Built to withstand the harsh vibration and thermal fluctuations common in commercial air handlers and rooftop units

Designed specifically for Robertshaw 722 series dual gas valves

5508) and Direct Vent (4007

while commonly found in blower groups

Johnson Controls A-4000-1037 Filter the switch automatically closes theAs a seasoned technician, you know that keeping oil aerosols and vapors out of pneumatic lines is non negotiable for system longevity. The Johnson Controls A 4000 1037 is a critical inline oil removal filter designed specifically for pneumatic control systems where air purity is paramount. Featuring a 1 4" barb connection, this compact unit serves as a high efficiency coalescing filter that traps sub micron oil particles before they can foul sensitive