Size:for 10.25" Buchner Funnel Filter Large Volumes Quickly. 18" diameter polyethylene funnel with a removable, perforated filter plate. Filter plate is 4.8mm (3/16") thick with 4.8mm (3/16") perforations on 11mm (7/16") centers. The removable filter plate is ideal for precious metals recovery. Removable hose barbed connector accepts 12.7mm (1/2") I.D. tube and threads into 3/4" NPT bung on the funnel. Overall height is 11.5" (29.2cm), 8" (20.3cm) rim to plate. Use below 52degressC (125F) Sold per each. Research, industrial and healthcare professionals rely on SP Scienceware for their sample handling needs. Sold worldwide, Bel-Art and H-B Instrument brand laboratory supplies include over 5,000 items from safety wash bottles to fume hoods, thermometers, racks, desiccators, hydrometers, ice buckets, scoops and spoons. Custom calibration services, plastic molding, specialty coatings and wire manufacturing are also available. Wilmad-LabGlass brand laboratory glassware complements Bel-Art and H-B Instrument with over 7000 items including NMR and EPR consumables and specialty glassware, as well as custom fabrication for individual glassware, glass repair services and OEM glass parts. SP Scienceware is a division of Warminster, PA based SP Industries which also include SP Scientific laboratory, thermal management, and pharmaceutical production equipment and SP Ableware aids for daily living.