I got tired of stirring Cermark settled at the bottom of high priced 250g bottles, so I had an idea.
Put (2) 1/2" Nuts or ball bearings or washers etc, into Cermark 250g bottle, place bottle in rock tumbler for a few hours prior use or every once in a while to keep stirred and fresh.
Fits bottle perfect.
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4" PVC pipe with end caps for bottles which are misshaped or too small.
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