This directional bubble style carb cap is universal, designed to be used with all types of bangers. That being said, it operates best with the 30mm dropdown banger nail.
There are numerous benefits of using a quartz carb cap on a banger nail! They are resistant to cracking and quartz is extremely strong and can withstand high levels of heat stress.
You will instantly notice the difference in the efficiency of your pull when you utilize a carb cap