We are offering Filtering Flask that is made from borosilicate glass. The top rim on the Filtration Flask is extra heavy for safety. The side of the Filtration Flask is marked with a large white capacity scale and a white marking spot. The Filtration Flask is available in different sizes and can be customized according to the clients’ specifications. Features Heavy wall thicknessAccurate as per standardsDurable Available Sizes 250 ml500 ml1000 ml3000 ml5000 ml