Calibration and Test Box for Normal Resistivities, SP, and Induced Polarization Search for: Search “203 mm (8 inch) Centralizer Blade” 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 1/3 Meter Measuring Wheel $419.00 Read more 17-202-289, 76 mm (3 inch) Atom Centralizer Blade $19.00 Add to cart 17-202-294, 305 mm (12 inch) Atom Centralizer Blade $65.00 Add to cart 17-202-053, Disposable, molded PVC centralizer for 40 mm diameter probe, 52mm (2.0″) diameter boreholes $80.00 Add to cart