Porcelain, with fixed perforated bottom, glazed inside and outside, except for outside bottom surface and rim.

Porcelain, with perforated bottom, glazed inside and out except for outside bottom surface and rim. Used for similar applications as Gooch crucibles.

Porcelain, Porous bottom crucible, with porous disc permanently formed into walls. Stable porosity and rate of flow. Available with very fine (1.2 microns), fine (5 microns) and medium (15 microns) pore dia. Discs.

99.7% Alumina Crucible, Cylindrical Form, unglazed. Max. use temp. 1750°C.