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⚡ Filter smarter, not harder — precision meets speed in every circle!
StonyLab Quantitative Filter Paper Circles offer 125mm diameter cellulose filters with a 20 micron particle retention capability, delivering fast filtration speeds between 35 and 70 seconds. With ultra-low ash content (≤0.01%), these filters ensure high purity and reliable quantitative results. Packaged in a convenient set of 100, they are ideal for professional labs seeking consistent, cost-effective filtration solutions.



















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