H-2-36 Level Gauge, Tank, Tank Depth 36 In, Connection Size 2 In NPT, Calibration Unit Material Inner and Outer Plastic, Calibration Unit Increments Full, 7/8, 3/4, 5/8, 1/2, 3/8, 1/4, 1/8 Empty, Gasket Material Duro Nitrile, Bushing Material Aluminum, Assembly Nut Material HDPE Plastic, Rod Material Galvanized Steel, Rivet Material Brass, Float Material HDPE Plastic