Moderately fired, largely Talc body. Made with a time-tested, proven formula, it is a utilitarian ceramic with good porosity, tough exterior and interior surfaces, and is ivory white in color. Recommended for general purpose uses that involve pressure differentials under 1 Bar (14.5 psi). Typical bubbling pressure: 20-30 psi. Effective pore size: 1.7 microns. Hydraulic conductivity: .000000756 cm/sec. Approximate porosity: 34% by vol. Flow through. All cups are "as cast".

Diameter: 0.375 inches (tol. +0.030/-0.000"), 0.953 cm (tol. +0.076 /-0.000 cm) Length: 1.125 inches (tol. +/-0.063"), 2.858 cm (tol. +/-0.160 cm) Wall Thickness: 0.063 inches (+0.030/-0.000"), 0.160 cm (+0.076/-0.000 cm) Weight: 0.07 oz/1.93 gms

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