Zonon 64 Pcs Synthetic Filter Paper Stickers 0. 3 Um Filter Disc Mushroom and 100 Pieces Pressure Resistance Vial Rubber Stopper Injection Ports for Mushroom Cultivation(13.2mm Diameter)

I have 2 jars of brown rice ready to go for mycology. They have sat for a year and no leakage or contamination in the jars.Easy install and lasts a long time.

Very impressed with the quality of the injection port and filter patch. Use of ease and product durability. Holds up pressure cooking and no contamination issues. Great addition for any Mycology enthusiast.

First I want to let you know the hole that needs to be in the top of the jar is 1/4". I had to watch the video in the listing to find out what size hole was needed. Go straight up and down with your drill bit. If it wobbles a little you will not get a good seal for your injection port. They come packaged separately but in one plastic bag. I have used them 8 times now and have had a successful grow of mycelium each time. Highly recommend.

Works as intended but go with a 15/64” drill bit instead of 1/4” if you want a tight seal for the rubber injection port and 1/2” for the filter hole. Now if these SNAPE would hurry up I’d be a happy trippy hippy 🤣 @420mafia

Great value and have worked awesome so far. No contamination if you put everything on right. You have to make sure it's completely flat when you install the plug pull it in from the inside.

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.

100 percent satisfied and I would recommend these to anyone.

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.