I upgraded to ballvapes recently so I'd like to pass this on to another stoner in need. The unit comes with all the parts necessary to use with a whip-hose, a bent neck mouth piece (one with a glass screen, one with a metal screen,) or the bag option. I've included some extra metal screens as well. The unit runs flawlessly. I did my best to iso soak and clean the accessory pieces. You may want to purchase your own but they are decent out of the box.