64 Pieces Synthetic Filter Paper Stickers 0.3 ?m Filter Disc Mushroom and 100 Pieces Vial Rubber Stopper Injection Ports for Mushroom Cultivation (13.2mm Diameter)

Features:

How to use:
You can stick these synthetic filter paper to cover the hole under the wide mouth canning jar lids, and the synthetic filter paper is characteristic with high filter rate, nice for mushroom cultivation.

Sealed storage:
These vial rubber stoppers are durable, washable, reusable, corrosion resistant, fit for glass vial and liquid culture jars, letting the liquid and solid stored in nice condition.

Specifications:
Size: as the picture
Quantity:
64 x Disc filters
100 x Vial rubber stoppers

Note:
Please allow error due to manual measurement.

Package include: you will receive 64 pieces synthetic filter paper stickers in 20 mm diameter and 100 pieces 13 mm stopper for 7.6 mm diameter opening mason canning jar lids
Nice performance: these disc filters feature outstanding heat resistance and pressure resistance, which can be applied to your autoclaves
High filter rate: these mushroom disc filter can filter 0.3 μm object and can ensure the circulation of internal and external air, indispensable items for your mushroom cultivation
Vial rubber stopper: these vial rubber stoppers are made of rubber, not easy to deform, durable, washable, reusable, corrosion resistant, and can be applied for seal the vial containing most kind of liquid or solid
Apply for: these synthetic filter paper can be attached to the hole of wide mouth canning jar lids and you need to clean and dry the surface before sticking synthetic filter paper