Genuine Tyvek© - 3.5" filters.

These Tyvek© filters are ideal for mushroom cultivation as they allows gas exchange to take place while keeping out bacteria and mould spores so that your jars and substrates can breath, while keeping contaminations out. Furthermore, these filters can be re-used as they will not degrade in an autoclave or pressure cooker; autoclave/pressure cooker safe.

Filter size is 3.5 inches square, approximately. Ideal for Mason/Ball/Kilner jars but can also be cut to size without compromising structure.

We also have other filters in stock and other laboratory supplies and consumables used in mushroom cultivation;

• Syringe filters
• Synthetic filter discs
• Self healing butyl ports
• Various agars

Please also check out our other related items!