There is a very good glass producer on dhgate called Stevenlmz79. I purchased a klein recycler from them and have been using it as my go to for a couple of years now. The durability and functionality is great. The only thing I have switched out is the bowl that it came with. As others have mentioned, cleaning it is no fun but I find that if you rinse with iso and salt frequntly it helps with resin and tar build up. Other than the recycler, I used to use a larger straight tube piece but I got rid of it due to space and I still occasionally use an arizer air.