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Are Ground Glass Joints Standardized?
I'm a GonG (Glass on Glass) newbie. Are the 14.5mm and 18.8mm ground glass tapers an industry standard? The reason I ask is sometimes I see 18mm and 19mm listed, even on the same site. I recently bought a Wildrose beaker from Grasscity and the downtube is loose and wobbly. Really not the...