Features: Experience high efficiency filtration with our organic microporous filter membranes, featuring a pore size of 0.22/0.45um to ensure purity in aqueous filtration processes. Crafted from mixed cellulose, these membranes boast strong chemicals resistance, excellent breathability, and fast filtration speed, making them ideal for demanding applications. Widely applicable in biological experiments, pharmaceutic analysis, environmental monitoring, and water quality testing, these membranes are essential tools in various scientific fields. Perfect suit for laboratory researcher, quality control inspectors, water treatments specialists, and related technical personnel seek reliable filtration solutions. Enhances your filtration processes with our filter membranes, designed to meet the rigorous demands of modern scientific research and analysis. Specifications: Materials: Nylons, Mixed Fibers Color: As The Picture Shows Package Weight: approx.20g Styles Optional: 4 Styles are Available as Shown in the Picture. Size: As The Picture Shows Package Includes: 50Pcs Membrane Filters note: Please allow 1-2cm error due to manual measurement. Please make surer you not mind before your bid. Due to the differences between different monitors, the picture may not reflect the actual color to the item. Thanks!