This is the Official Mouthpiece replacement for the Pulsar APX. I would recommend changing your mouthpiece from every 6-8 weeks depending on how much you use the Pulsar APX. A new mouthpiece will result in you having a cleaner taste to the vapor.
The mouthpiece is probably one of the easiest parts to change on the Pulsar APX, simply take off the old mouthpiece and throw it out. Take your new mouthpiece and pop it on the vaporizer. If you’re changing the mouthpiece I would recommend given the vaporizer a good clean the way you're getting the best taste of the clean device and the mouthpiece