When used as a main burner regulator

specifically from a 5 PSI minimum to a 300 PSI maximum differential

Built with a durable Satin Brass body

It should be inspected during seasonal PMs and replaced if discoloration or restricted airflow is observed to maintain thermostat sensitivity

and non-corrosive liquids

Johnson Controls P70LA-1 Pressure Control Refrigerant When used as a mainThe Johnson Controls P70LA 1 is a professional grade Dual Pressure Control engineered specifically for high reliability commercial refrigeration and HVAC compressor protection. This SPST (Single Pole Single Throw) unit integrates both high side and low side monitoring into a single device, streamlining field installation for contractors. The low side range covers 20 to 100 psi, while the high side range spans 100 to 425 psi, providing robust safety