Add a perc, ash catcher, precooler, aqua trap.. So many different terms used, all used for the same great functions. An ash catcher is a water filled sub chamber that you add to your waterpipe to add an extra step of filtration. It helps to get rid of those nasty carcinogens and lets the smoke cool down before being sucked into your lungs. The added filtration gives your smoke a much cleaner and smoother hit. Probably the best reason to add a perc to your waterpipe is for the ash catching factor though. Since all of your ash has to go through the water of your add a perc, barely any of the residue will make it to the main chamber of your piece making cleaning your glass a lot less time and effort. Smokin Js carries glass ash catchers in both 14mm and 18mm fittings and multiple angles to suit all of your smoking needs. Our most popular is our super thick M&M Tech Showerhead ash catcher. It is a beauty! Here at Smokin Js we want to create the most enjoyable smoking experience while appealing to your individual needs.