Product Information Mount: 1/4" Lower Mount Size: 2-1/2" Face Select a Product Part NumberFigure IntervalMinor GradientPressure Range GLP5055.50-30 PSI GLP5255050-300 PSI GLP5172020-160 PSI GLP540300200-1500 PSI GLP5003.20-15 PSI GLP5205050-200 PSI GLP535200200-1000 PSI GLP550500500-3000 PSI GLP5101010-60 PSI GLP527100100-400 PSI GLP545500500-2000 PSI GLP5152020-100 PSI GLP530100100-600 PSI GLP55510001000-5000 PSI