These awesome looking coloured 11-arm perc ash catchers are great for medium to larger sized bongs. Made with solid, high quality borosilicate glass, this ash catcher is formidable. The 11-arm perc adds a ton of smoke filtration for the tastiest hits while keeping your actual bong clean and clear for longer. Available in clear, blue, and green. Best suited for bongs with 45 degree angled joint. 19mm. Why an Ash Catcher? Ash Catchers are excellent attachments for your bong or water pipe that enables additional smoke filtration, while at the same time keeping your favourite piece clean from ash and other by-products of smoking. Ash Catchers act as an additional chamber for your bong/water pipe, making the smoke travel further before inhalation for cooler hits. Since ash catchers are available in a multitude of shapes and sizes, personalizing your favourite piece is easier than ever. Mix and match colours and percolators to create a bong set up that’s truly unique. If added percolation and filtration wasn’t enough, ash catchers also act as a barrier catching ash, resin, and other residue from entering your bong, providing cleaner and better tasting hits. Removing the ash catcher to soak and clean is a far less hassle than cleaning the entire bong set up every time.