I can't believe how much cooler the vapor gets with this ruby beads tube.
Glad I bought 2 so I can just switch out and soak the other one in ISO. I'm a little surprised that Airvape didn't think of this themselves. I didn't find significant decrease in the drawing efforts like some of the other reviews mentioned, but I hit my ALP pretty hard.

Works great, definitely helps the cooling

I've had this 30 days, only able to use it for the last 2 weeks.....recieved the glass tube from VG before my device and Bubble Capsules....VG is on top of fulfilling orders. Now, the cooling tube.....my preferred airpath with no screens in. Must clean frequently to maintain airflow. I've already cleaned mine several times as I've put it through rigorous real-world testing....lol, but seriously, substantial benefit in using VG ruby & glass tube over "factory" tube. The vapor is cooler and in my opinion, noticeably more "terpy".

Absolutely love this upgrade for the avlp, first off its cheap cant beat the upgrade for 10$! Then you have the vapor temp. It is such a cool hit it does add a litte of airflow restriction but not much, not enough to deter me from using it. I absolutely recommend this product.