Heinz Herenz Steristoppers No. 4, for Vial with Neck ID: 6.5 - 7.0 mm, 5000 pc/PAK

The original Heinz Herenz Steristopper are available in various sizes, shapes and packaging units, and custom-made products are also possible. Autoclavable up to 200°C Bacteria-filtering Can be sterilized Air-permeable Inexpensive Please note: For single use only