Round Air Filter Vents 0.22 Micron with 3M Backing (50-Pack) – Midwest Grow Kits

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Round Air Filter Vents 0.22 Micron with 3M Backing (50-Pack)

(9)
$699
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50-pack of 0.22 micron air filter vents with 3M backing. Autoclave safe, reusable, waterproof—ideal for grain jars, liquid cultures, and spawn bags.


Description

Round Air Filter Vents – 0.22 Micron with 3M Backing (50-Pack)

Sterile Gas Exchange for Jars, Cultures & Spawn Bags

These Round Air Filter Vents are the go-to choice for enabling sterile gas exchange in grain jars, live cultures, liquid culture lids, and spawn bags. With a 0.22 micron filtration rating, they effectively block airborne contaminants while allowing for ideal oxygen flow. Each vent is backed with lab-grade 3M adhesive designed to withstand autoclave temperatures over 250°F at 15 PSI, making them perfect for repeated sterilization cycles.

Designed for standard 1/4" jar lid holes, these 19mm filters come in a convenient sheet of 50 and are compatible with metal and plastic surfaces. Whether you're a beginner or a pro working on a large batch, these vents are easy to apply and built for performance.

Includes:

  •     50 peel-and-stick 0.22 Micron round filter vents (19mm diameter)
  •     Strong 3M pharmaceutical-grade adhesive backing
  •     Compatible with plastic, metal lids, and spawn bags
  •     Waterproof, reusable, and autoclave-safe

Perfect for DIY setups, labs, and serious cultivators looking for dependable sterile filtration in every batch.

Customer Reviews

Based on 9 reviews
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B
Brian
Great product

Super happy with the way this fertilizer works

B
Brian
Awesome

This product is perfect, no issues, super happy

B
Batman
Second purchase

Worked so perfect I am getting more this month.

M
MadCo Pest-a-Side
Air exchange stickers

Perfect as advertised arrived quickly

M
MadCo Pest-a-Side
Air exchange stickers

Perfect as advertised arrived quickly