Sartorius FT-4-103-185, 185 mm Green Dot Quantitative Folded Filter Papers / Grade 390, 100/Pk.

These 185 mm diameter slow filtering, green dot folded filter papers are used for quantitative & gravimetric analyses as well as for pressure and vacuum filtration. They are made out of 100% cotton linters with an α-cellulose content of >98% and are acid-washed to make the papers ashless and achieve high purity.