64Pcs 20mm Diameter Synthetic Filter disc Hydrophobic PTFE Membrane 0.3um Pore Size Strong Adhesive for Mushroom Cultivation sold2026 This makes the installation more

This makes the installation more permanent and reliable

Easy to Use Can be hand operated by use of wrenches

Wires/cables can be passed through grommet before or after installation

this set comes with a wooden case

and 5/16-inch (8mm)

64Pcs 20mm Diameter Synthetic Filter disc Hydrophobic PTFE Membrane 0.3um Pore Size Strong Adhesive for Mushroom Cultivation sold2026 This makes the installation more64Pcs 20mm Diameter Synthetic Filter disc Hydrophobic PTFE Membrane 0. 3um Pore Size Strong Adhesive for Mushroom Cultivation Specifications: Size: 20 mm in diameter Color: white Membrane material: Hydrophobic PTFE Pore size: 0. 3um Package includes: 32 x2 sheets Synthetic filter discs Features: Waterproof ,breathable,high temperture and press resistance,reuseable. 64pcs filter sticker Included ,Great for the for all mushroom growers looking to