Buy 70 mm Synthetic Filter Discs – Set of 100

Buy 70 mm Synthetic Filter Discs – Set of 100. These filters fit neatly within the rim of spawn jars underneath the lid, allowing air exchange but preventing the passage of contaminants. Sterilizable and reusable for life (not for food canning) 99.97% efficient filtration down to .3 microns. For jars with 70 mm diameter openings (regular-mouth canning jars). Set of 100.

About this item

• synthetic filter discs(filter disk): can be used within a pressure cooker, steam sterilizer or autoclave
• filter disc (filter disk 70mm)are reusable, highly durable and have a filtration rate of 99.97% that means they will filter down to .3 microns.
• planting discs fit precisely on any Regular Mouth 70mm canning jar which are commonly used by today’s cultivators
• 100 Synthetic Filter Discs 70mm Superior to Tyvek filter discs “regular mouth” Size Used for Mushroom Cultivation
• designed for 70mm wide mouth jar lids, you can also DIY them into regular mouth size or any other smaller sizes