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4225 ConcreteCalc Pro Concrete Estimating Calculator group-HP-305-Series-Toner-Cartridges. Make an impression with clearThe easy to use ConcreteCalc Pro helps reduce material waste, improve design accuracy and cut estimating time. Increase efficiency in the field or in the office with fast, accurate solutions for Square ups, Loads, Area, Volume, Rebar, Drop, Stairs and much more. It helps you: Work in Yards, Feet Inch Fractions Calculate Area, Volume and Weight per Volume Automatic Square ups and Drops Rebar solutions for total Linear Feet and Weight per size Complete