This is an awesome little ash catcher. It has an intricate lattice worked matrix diffuser that allows for optimal additional draw and filtration. Ash catchers are a great additional investment for anybody who wants to add more filtration to their water pipe. The 90˚ angle allows it to be used with just about any 14mm compatible water pipe. It is affordable and effective. Those are 2 attributes The Mushroom loves to see in any product we sell.