Nalgene DS0315-0047 PSF Lab Vacuum Filter Holder Clamp, 47mm Diameter, 250mL Capacity

Durable break-resistant plastic filter funnel complete with clamp for use in microbial and particulate analysis. Same funnel design as glass funnels but break resistant. Clear polysulfone is non-toxic exhibits low protein binding and is easy to clean. Upper reservoir is graduated in 25mL increments from 100 to 250mL. No leakage or bypass even after autoclaving. Membrane support plate firmly holds 47mm membrane. Snug-fitting cover has three ports each fitted with friction-fit cap. Spring-loaded all-aluminum clamp holds funnel and stem together yet allows easy access for retrieval and replacement of membrane. Clamp also allows one-handed operation. Funnel may be used with any filtering flask or filter manifold which accepts a No. 8 filter stopper with a 9/16 inch (15mm) hole. Funnels also available separately. Transparent. Graduated. Autoclavable. Leakproof. Material: polypropylene copolymer cover polysulfone funnel TPE cap silicone gasket number 8 rubber stopper and aluminum clamp. Funnel capacity: 250mL. Diameter: 47mm. Sold individually. Nalgene #: DS0315-0047.