Product Information Mount: 1/4" Lower Mount Size: 2-1/2" Face Select a Product Part NumberFigure IntervalMinor GradientPressure Range GL335FG2050-160 PSI GL340FG2050-200 PSI GL350FG50100-600 PSI GL365FG400500-2000 PSI GL300FG1.50-15 PSI GL347FG50100-400 PSI GL325FG510-60 PSI GL345FG3050-300 PSI GL375FG10001000-5000 PSI GL320FG5.50-30 PSI GL355FG200200-1000 PSI GL370FG5001000-3000 PSI GL330FG1020-100 PSI GL360FG300500-1500 PSI