Poly Stopper

$1.60
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SKU:
9
Poly Stopper
SIBATA® brand, ST Stopper, Polyethylene SIBATA ST Polyethylene Stoppers meet ASTM E-675 Specifications. These stoppers are made with closed bottoms and polyethylene, which conform to ST stopper dimensions. The three unit rings on the base provide an efficient seal. Can be used in place of conventional ST flask stoppers.