GLASS SPE PTFE RING FOR 50ML 5/PK (5/pk)
https://www.taacf.org/shop/rw2-5010-28022-glass-spe-ptfe-ring-for-50ml-5-pk-5-pk-314935
https://www.taacf.org/web/image/product.template/314935/image_1920?unique=f5f1e89
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This GLASS is guaranteed a SPE with the use of PTFE RING FORand directly supplied to your lab by Gentaur's warehouse.
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