Beautifully designed ash catcher will keep your piece clean and will add some percolation.
Ashcatcher has an inline perc to start your smoke session with a smooth start.
Does a wonderful job of collecting all the ash before it gets to your piece.
This ashcatcher is large one at 6 inches wide by 5 inches tall. 
This helps keep your water pipe clean. 
This will fit a 19mm Female water pipe.
This ash catcher has a 45 degree joint.