Comes with everything you need and fits on my Quart jars perfectly. I actually leave the middle hole capped and use the deep draw needle to suck up LC when I need it. I think its much easier than going through the injection port many times and leaving room for contam to enter.

I have been looking for something like this for years! This really makes the process contam proof! Willy Myco mentioned this in a Youtube Video and he was on point! I can now easily pull liquid anytime without a flowhood!