SV9510K2539 RESIDEO GAS VALVE, SMARTVALVE, DIRECT HOT SURFACE IGN, 24VAC, 4 TRIAL TO LOCKOUT, 1/2 PSI PRESSURE RATING, 1/8" NPT PRESSURE TAPPING, SLOW OPENING, 1/2"X1/2" NPT, 3.5"WC REGULATOR SETTING, -40-175 DEGREE AMBIENT TEMP RANGE, 9 SECOND IGN TRIAL TIME, INCLUDES LP CONV KIT