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Nickel-plated. Die-cast base 7/16" aluminum mixing tube. For natural gas.
This glass apparatus is used to connect different standard taper ground joint sizes. It has a lower ...
Glass alcohol burner with a glass cap for extinguishing the flame and to prevent evaporation of alco...
Wide Range pH test paper is a vital tool for classroom projects and field trips. 1-14 pH range. Colo...