Calibration and Test Box for Normal Resistivities, SP, and Induced Polarization Search for: Search “17-202-059, Disposable, molded PVC centralizer for 40 mm diameter probe, 73mm (2.9″) diameter boreholes” has been added to your cart. View cart $790.00 Calibration and Test Box for Normal Resistivities, SP, and Induced Polarization quantity Add to cart SKU: 17-202-096 Categories: All Products, Logging Accessories Description Additional information Description 17-202-096 Calibration and Test Box for Normal Resistivities, SP, and Induced Polarization Additional information Weight 8 lbs Related products 127 mm (5 inch) Centralizer Blade $59.80 Add to cart 152 mm (6 inch) Centralizer Blade $59.80 Add to cart 17-202-290, 102 mm (4 inch) Atom Centralizer Blade $26.00 Add to cart 1/3 Meter Measuring Wheel $419.00 Read more