100Pcs 20mm Self Healing Injection Ports,vials Rubber stoppers,Butyl Cap for Glass Bottle& Mushroom Liquid Culture Mason Jars by Biomed Scientific(Grey）

These injection ports work well and are made of a soft, flexible rubber. I use large needles for my mycology cultures, and the ports last between 30-40 injections with a 16ga needle. Once I went past 40 injections, the rubber had trouble self-healing. The way the bottom is designed, the thick walls help for a strong seal with the vial, but they reduce the area that is thin enough to easily stick a needle through to 5mm so the injections are more concentrated to the center of the stopper and not spread across the total surface area. The injection ports last longer with 25ga needles, and you can get 300-400 injections before the stopper starts to have trouble sealing.

Been useing them awhile now, very strong rubber. Have literaly been through 100s of Pressure Cooks at 15psi for 90minutes a go. Quality product.

Actual self healing when penetrated. No loose particles/rubber after sticking

i’m only knocking off 1 star bc these aren’t really red. they’re more of an orange-brown color & i’m bummed bc i needed a specific color. red being that color. so that’s kind of disappointing. but these do fit into the bottles i need them for. so that’s a plus but still the color difference is unfortunate. idk if they’re going to seal the bottles the way i need them to. but i’ll update if they don’t. it’s a good value. but yall should really show the actual color of them. i’ve included a photo of the color using a color picker tool. also, these fit into a 60ml glass spray bottle perfectly.

These injection ports along with the filters will keep most contaminants out of your spawn jars. I use them everytime with great results.

Items hold up well even when ran through a pressure cooker multiple times. Even using blunt tip needles they seal repeatedly. I still have 1/2 the jar so at this rate its a lifetime supply!

If you're looking for injection ports to make your own mycology lids, these are the ones you want. A 12 mm hole drilled in the lid, and these will press fit right in, no adhesive or silicone necessary. They have worked perfectly for me for my liquid cultures - no contamination. I have also used them on my grain jars by just spritzing down both sides with 70% isopropyl alcohol before putting them on.

I bought these to cap my needles to do BAER hearing test. They work but they’re a little bit big I wish they had a smaller version available.

These are decent injection ports. The delivery took longer than most items, but I'd rather wait for a good quality item and these are good quality.

Très bonne qualité

Conforme à la description. Pour l'injection de mon mycelium à ma culture de champignons j'avais besoin d'un port comme celui ci. J'ai fait un teste en autoclave voir si il tenais bien sur des bocaux de stérilisation et il résiste à une température de 130 degrés plongé dans l'autoclave pendan50 minutes. Il ne ce déforme pas et garde toujours sa texture souple à la sortie d'une température élevé. 10/10 :-)

muy buena calidad, muy resistentes

Item arrived quickly, well packed and in good condition, happy with quality of product, thank you.