Filter Holder 47mm, open-face, Aluminum, 1/PK-PALL 1220

Available in three sizes: 25, 37, and 47 mm Includes caps. The openface filter holders are lightweight and corrosionresistant. The 25 mm holder is made of Delrin plastic and is designed for clean room sampling, breathingzone air samples collecting, bacterial monitoring, particulate analysis, etc. The 37 and 47 mm holders are constructed of aluminum. They can be used for trapping airborne particles, fluorescent tracers, and other contaminants. They include a plastic cap that protects samples after filtration.