A filter paper designed specifically for student use. Intermediate in speed and retention between grades No. 1 and 4. Retains those flocculent and medium precipitates most often encountered in student experiments. Packaged in a dispensing carton containing 50 envelopes of 25 circles per envelope. (1250 sheets). The dispenser pack can be attached to the wall or bench, placed on a shelf either upright or flat and used as a normal carton or as a convenient dispenser.
