What is the difference between FP-02 and FP-02-1PK

Built with a heavy-duty steel frame and a 100 mesh outlet screen

It means the control board is not seeing the S1-024-35979-000 close when the inducer starts

minimizing vibration stress on the piping

Maxitrol R500-3/4 Regulator Els PW 17895 What is the difference betweenThe Maxitrol R500 3 4 Regulator is a specialized appliance gas regulator engineered for high precision pressure management in industrial and commercial environments. Standardized with 3 4 inch NPT threaded ports, this unit features a double diaphragm balanced valve design, which is critical for maintaining a stable 3 6" w. c. outlet pressure regardless of fluctuating inlet conditions. While CSA certified for 1 2 PSI, it is Maxitrol tested to handle a