The Recycler Drop Down Ash Catcher with a 18mm joint size is a functional accessory designed to enhance your smoking experience. As a drop-down ash catcher, it helps keep your water pipe or bong cleaner by trapping ash before it enters the main chamber. The recycler feature adds an extra layer of filtration, contributing to smoother hits. With a 18mm joint size, ensure compatibility with the corresponding joint size of your water pipe. This ash catcher not only helps maintain a cleaner smoking device but also provides additional percolation for a more enjoyable session. Upgrade your setup with the Recycler Drop Down Ash Catcher.