1000ml,Glass Suction Filter Kit,350ml 24 40 Buchner Funnel & 1L Erlenmeyer Flask update_march2023 Whether you’re using a TENS June_2023_update Whether you’re using a TENS Unique FeaturesEasy and convenient to install because it has active parts Linear Coefficient of Expansion 3210 7 C Glass Buchner Funnel with 3 Coarse filter(Filtration Pore Diameter is 15 40 Micron) 1PC Inner diameter of the Funnel around 70mm(Not Accurate) Other Coarse Filters imformation (Order produce Available) 1 Coarse Filter:Filtration Pore Diameter is 80 120 Micron 2 Coarse Filter:Filtration Pore Diameter is 40 80 Micron 3 Coarse Filter:Filtration Pore Diameter is 15 40 Micron 4 Coarse Filter:Filtration Pore Diameter is 5 15 Micron 5 Coarse Filter:Filtration Pore Diameter is 2 5 Micron 6 Coarse Filter:Filtration Pore Diameter is <2 Micron 3