Porcelain Filtering Funnels
Fisherbrand™ Porcelain Buchner Funnels with Fixed Perforated Plates
For suction filtration applications
Fisherbrand™ Porcelain Hirsch-Type Funnels with Perforated Plates
Highly resistant to chemical attack
CoorsTek™ Porcelain Buchner Funnels with Fixed Perforated Plates
Completely glazed except for rims
Bel-Art™ SP Scienceware™ Coarse Porous Plate
Replacement accessory for use with Buchner Table-Top Funnels.
CoorsTek™ Porcelain Hirsch-Type Funnels with Perforated Plates
Glazed inside and outside except for rims
CoorsTek™ Porcelain Buchner Funnel with Fixed Perforated Plate for Vacuum
One-piece table-type style
Bel-Art™ SP Scienceware™ Büchner Funnels 
Lightweight, but not top-heavy.
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