I had to buy this piece to replace my Arizer glass elbow after I accidentally dropped it in the sink while cleaning it. I clean it and the other pieces pretty regularly to keep good airflow, but this piece is the most difficult to clean. The "nose" is tight, I can hardly clean it with a Q-tip. The best method I have found is to cut the cotton part off and use the plastic bit to scrape away the residue. I would recommend getting a small pipe-cleaner or brush. Use baking soda and rubbing alcohol and it's good as new. Just make sure you clean it over something soft in case you drop it. You do not want to fork out $8 plus hefty shipping to replace one due to negligence. The mesh filter should be soaked in order to get most of the residue out, but the sides of the mesh are hard, if not nearly impossible to keep free of residue after you use it for awhile. If Arizer could make one of these with a wider nose, and make one out of hardier material, I'd give it five stars.

sorry , but the ELBOW IS NOT W0RTH THE MONEY YOU PAY FOR IT !!!!!!!!!!!!!!!!!!!!!!!!!!1

The elbow seems to be the weakest link in this whole system, so I ordered a few extra. Ordering was easy peasy and it arrived even before it was supposed to get here.

This adapter,along with the whip and the bowl are essential to the functioning of the Arizer vaporizer,which is the best vaporizer med delivery system,hands down..

I made this purchase to replace a broken elbow (my fault) these are excellent products. I'm happy with everything I have gotten.