64 Pieces Synthetic Filter Paper Stickers 0.3 um Filter Disc Mushroom and 100 Pieces Vial Rubber Stopper Injection Ports for Mushroom Cultivation(7.6mm Diameter)

Great quality and fast arrival time. Very Pleased.

Use these for my spawn jars and they hold up well, will buy again!

They worked on my jars, went through the pressure cooker and came out fine. i would recommend maybe squirting some silicone around the stopper I had one out of twelve kind of wobble and let in contamination but the rest all seem to have worked.

These items work great for my modified jar lids that I use in mycology experiments 👍🏻👍🏻

Cultivo setas y me han funcionado de maravilla. Los recomiendo.

Used then to make jars. They worked great.

I tried making my own lids with the red, heat-resistant silicone and polyfil. They work but are messy. This item is a no-brainer. I put micro pore tape over the injection port after I injected just to be safe.

Add a little RTV when putting in the ports. They don’t make a good enough seal otherwise. My whole batch of spawn jars got contaminated despite my best efforts.

Very pleased with my purchase. Seller was helpfull and honest. Will come back for more 👍

Well packaged, nice item.

Ottima qualità

I didn't get the silicone port... Only the stickers..This is really bad

Just what I needed Would be nice if the Synthetic Filter Stickers were at least 3cm diameter.