PYREX® High Temperature Pouring Rings, for PYREX® Media-lab Bottle, GL 32 10 Pack

Pyrex ETFE Pouring Rings, Thread Size: 32 mm, Red, Quantity: 10/PK., Dry Heat Sterilized, Autoclavable: No, For Use With: Media-lab 1516, 1517, 1518, 1519 and 1520 series bottles