Filtration apparatus We supply lab glassware of filtration apparatus. Filtration apparatus from our company win gold medal of the ninth fair of China patent new technology and new products. It has five parts: Funnel, filter, membrane, clamp, receiving bottle. Technique parameter: Filter head: External diameter is slick; Internal diameter is frosted. Clamp of aluminum alloy: Made of aluminum alloy, high strength, no distortion. The funnel, filter and receiving bottle are all with ground glass sealing surfaces. The filter is also called support screen.