Product Description. SDS. SLGSV255F. A 25 mm diameter sterile syringe filter with a 0.22 µm pore size Mixed Cellulose Esters membrane. Comes in a pack of 50. Pricing. SLGL0250S. A 25 mm diameter sterile syringe filter with a 0.22 µm pore size Mixed Cellulose Esters membrane.