Four Branch SS316L Lab Vacuum Filtration Apparatus Membrane Filter features : 1. 47mm or 50mm diameter membrane 2. Acid-resistance, alkali resistance and fast filtering speed for 316L version 3. Can worked under 180℃ - 200℃ high temperature 4. Individual control valve, convenient to operate several samples filtration at same time Components for this four branch SS316L lab vacuum filtration apparatus: 1. SS316L material filter cup ---300ML 2. SS316L material filter head 3. SS316L material filter stand 4. stainless steel valve 5. Aluminum alloy clamp 6. cap 7. rubber stopper Contact us freely, if you have any questions. Thanks for your kind interests!