Adhesive 0.3 µm Lid Filter Patches — 5 / 10 / 50 Pack

18 mm adhesive lid filters — jars breathe, contaminants stay out.

Stick-on 0.3 micron patches for mason lids and culture containers. Hydrophobic, oleophobic, autoclavable, and made with a filter layer that keeps working after steam. Packs of 5, 10 or 50.

What you get

• 18 mm adhesive filter patches
• 0.3 micron filtration
• 3M adhesive
• Hydrophobic and oleophobic
• Fully autoclavable
• Packs of 5, 10 or 50

Why growers pick it

• Gas exchange for grain jars without a loose polyfill hole
• Proprietary micron layer resists steam breakdown and moisture saturation
• Peel-and-stick application in seconds
• Made from 100 percent recycled material

How to use

• Drill or punch a hole smaller than the patch
• Clean the lid and press the adhesive side over the hole
• Pair with a self-healing port if you inoculate by syringe
• Autoclave the finished lid. The filter is built for steam

Choose your pack

• 5 pcs: €6
• 10 pcs: €10
• 50 pcs: €45

Packed and shipped from Italy. Processing 1–3 days.