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. Its 90° angled arm is designed for use with a 19mm female joint on any straight-based water pipe. The ash catcher comes ready to use with a 14mm funnel bowl and works best with approximately 1.5″ of water.