This is an awesome little 14mm ash catcher. It has an intricate lattice worked matrix diffuser that allows for optimal additional draw and filtration. Ash catchers are a great investment for anybody who wants to add more filtration to their water pipe. 45° angled ash catchers work best with beaker-style water pipes but can also be used with straight tubes compatible with 14mm accessories. It is affordable and effective, two attributes The Mushroom loves to see in any product we sell.