The GRAV® Ash Catcher is 5" tall and made on 38mm tubing. Its fission downstem diffuses smoke through water and can be removed for easy cleaning. Ash Catcher's 45°/90° angled arm is designed for use with a 14mm/19mm female joint on any straight-based water pipe. The ash catcher comes ready to use with a 14mm/19mm funnel bowl and works best with approximately 1.5" of water.