L&R Plaster & Stone Remover Case 230 by L&R Manufacturing Company GROUP: Sterilization:Instrument Care & Cleaning:Miscellaneous Item Description: Plaster & Stone Remover, Gallon Bottle, 4/Case Packaging Desc: Solution Ultrasonic Plaster/Stone Remover Gal 4/Case Country of Origin: US Harmonized Tariff Code: 3402.20 Product Description: Removes tough-to-clean plaster and stone from dentures, partials, flasks and articulators when used in a beaker or plastic bag in conjunction with an ultrasonic cleaning machine.