... filter (filtration) system Enhance detection efficacy Durable material HKM Stainless Steel Funnel Filter System is safe, reliable, beautiful, environmental ... preventing Overflow Tool, liquid lever display4. Membrane Filter for microbiological analysisΦ47×0.22μm×200pieces/box, Individual ... Pack, sterilized5. Membrane Filter for Microorganism analysisΦ47×0.22μm×200pieces/box, ...