PRESSURE CONTROL, ( SPST ); FUNCTION( ON/OFF ) RANGE( 3 TO 15 PSI )( 1/4" FPT ) OPENS ON RISE, MFG. HONEYWELL CLEVELAND STEAMER FRYMASTER STEAMER MARKET FORGE BOILER 4 & 6 BURNER GAS BOILERS, AUTO BLOW-DOWN GAS BOILERS (180,000 BTU).