pH Color Chart on Polyart Plastic Sheet with Roller, 29 x 39 inch Subcategory_Weights and Masses Single decade resistance box stepping from Single decade resistance box stepping from 1k ohm to 10k ohms in 1k ohm increments on a rotary dial One microfarad electrolytic capacitor in an ABS module with 4mm sockets displaying the pH scale and indicator color ranges for visual reference Classroom size 29x39 inch pH color chart on tear resistant polyart plastic with a roller fitted for hanging and storage
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pH Color Chart on Polyart Plastic Sheet with Roller, 29 x 39 inch Subcategory_Weights and Masses Single-decade resistance box stepping from