Pricing. EZHAWG474. mixed cellulose esters (MCE), pore size 0.45 μm, filter diam. 47 mm, gridded white filter, suitable for bioburden testing, input: beverage (s), bottled water. Expand. Hide. MSP000814. mixed cellulose esters (MCE), pore size 0.45 μm, filter diam. 47 mm, black filter, gridded filter, suitable for bioburden testing, input: beverage (s), bottled water.