The UPC Ash-Catcher with 4-Arm Tree Perc is a great additional accessory to keep your water pipes clean and offer extra diffusion and filtration. Shaped like a bottle, this ash catcher features a four arm tree percolator inside which has glass tubular arms with slits. Smoke passes through this ash catcher’s percolator before going into your desired water pipe through the joint. It creates diffusion and filters the smoke to initialize smoother, cleaner tokes. This piece will retain any burnt up ash from the built in flower bowl and not allow it to transfer over into your bong keeping your prized possessions clean. This piece is available in either a 45 degree or 90 degree male fitting in either 14.5mm or 18.8mm diameter. In addition, each variety of angled male fitting and diameter is available in a Clear, Blue, or Green colored 4-arm perc. Its variety of combinations allows you to choose whichever one fits your water pipes best.