Do you apply these under, over or both?

I think applying both is overkill and create “too much” a filter situation. One os plenty and usually on the outside. But i do not know your intended use. But again one is plenty and on the outside

Will they cover 2 in hole?

Our stickers are only 2cm and can't cover 2 inches.

what is the material?

No idea. But its breathable. Seems like a poly.

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Zonon 128 Pieces Synthetic Filter Paper Stickers 20 mm 0.3 μm Filter Disc Mushroom Applied Under Wide Mouth Jar Lid for Mushroom Cultivation

Zonon 128 Pieces Synthetic Filter Paper Stickers 20 mm 0.3 μm Filter Disc Mushroom Applied Under Wide Mouth Jar Lid for Mushroom Cultivation

Product ID: 289999655

🌀0.3 μm ultra-fine filtration

🔥Heat & pressure resistant

🌬️Breathable air circulation

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Description

🍄 Cultivate with Confidence — The Ultimate Breathable Filter for Next-Level Mushrooms!

PRECISION FILTRATION - Filters particles as small as 0.3 microns, ensuring a contaminant-free environment.
BULK PACK CONVENIENCE - 128-piece set ensures you never run out during your cultivation cycles.
AUTOCLAVE READY DURABILITY - Withstands high heat and pressure for sterilization without compromise.
OPTIMIZED AIRFLOW FOR GROWTH - Breathable synthetic material promotes ideal air exchange for robust mushroom cultivation.
PERFECT FIT FOR WIDE MOUTH JARS - 20 mm diameter discs designed to seamlessly fit under jar lids.

Zonon’s 128-piece synthetic filter paper stickers are engineered for mushroom cultivators seeking reliable air circulation and contamination control. Each 20 mm disc filters down to 0.3 μm, resists autoclave heat and pressure, and fits perfectly under wide mouth jar lids, creating the ideal environment for strong, healthy mushroom growth.

Specifications

ASIN	B08P1T1Z1S
Best Sellers Rank	#360,215 in Kitchen ( See Top 100 in Kitchen ) #681 in Canning Lids
Brand	Zonon
Customer Reviews	4.7 4.7 out of 5 stars (605)
Date First Available	23 January 2021
Item Weight	18.1 g
Manufacturer	Zonon
Manufacturer Part Number	Zonon-37585
Material Type	Synthetic
Model number	Zonon-37585
Package Dimensions	21.34 x 11.94 x 0.25 cm; 18.14 g

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$U4205

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In stock

Sold byAmazon UruguayDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Uruguay.

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TrustScore 4.5 | 7,300+ reviews

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