Product Information Mount: 1/4" Lower Back Mount Material: Stainless Steel Size: 2-1/2" Face Select a Product Part NumberFigure IntervalMinor GradientPressure Range PBLSS1602020-160 PSI PBLSS400100100-400 PSI PBLSS2000500500-2000 PSI PBLSS500010001000-5000 PSI PBLSS1000200200-1000 PSI PBLSS800200200-800 PSI PBLSS1002020-100 PSI PBLSS601010-60 PSI PBLSS3005050-300 PSI PBLSS2005050-200 PSI PBLSS3000500500-3000 PSI PBLSS1500300200-1500 PSI PBLSS305.50-30 PSI PBLSS153.20-15 PSI PBLSS600100100-600 PSI