Description
PM706RME Series Plumb Bob, Brass Stainless Steel Dual English Metric Scale Oil Gauging FR Clothing Select Size: 500ml Select Size: 500ml Glass Graduated Hydrometer Cylinders Zero calibration point at the bottom of the bob Designed to be used with inage (sounding) measuring tapes to measure the depth of liquid in a tank from the surface of the liquid to the tank bottom