4" Cast Iron Closed Ring Support Type_Celestial storing and transporting tubes between

storing and transporting tubes between workstations and the sterilizer

sized for fine ductile materials including nylon

sized for demonstrating the inverse pressure-volume relationship of a gas at constant temperature

One-meter single-wire potentiometer with 24 SWG constantan wire stretched along a millimeter scale

Steam-sterilizable polypropylene pipette rack holds 12 pipettes horizontally for bench storage and autoclaving in molecular biology laboratories

4" Cast Iron Closed Ring Support Type_Celestial storing and transporting tubes betweenRugged cast iron closed support ring with an integral screw clamp, combining a 4 inch inner diameter and a rod grip from 5 16 to 5 8 inch for holding wire gauze and vessels over heat.