These filters can be applied to metal jar lids to allow your culture to breathe while protecting it from contaminant spores and bacteria. Punch 1/4" hole(s) in your metal lid discs before applying filter. One to two holes is usually sufficient. Great for projects involving wedge transfers and grain transfers.
- 0.3 micron filtration efficiency
- Reusable & Washable With Damp Towel
- Hydrophobic & Oleophobic
- Made from 70% recycled material
- Fully autoclavable, high temperature resistance