Porvair Sciences' line of polypropylene filtration plates included this 96-well short-drip 300 microliter product. The mean pore size of this filtration plate, product # 360047, is 25 micrometers. Other 96-well filtration plates in the Porvair product line include those having a long drip feature, different pore sizes, and featuring polypropylene, polystyrene or glass fiber construction.