Ashcatchers can be quite the addition to any water pipe. They help keep your bong clean and diffuse your smoke. The NucleusÊMatrix Perc Ashcatcher is a great accessory to really elevate your smoking setup. A matrix perc stems from the female joint on top which comes in your choice of size. The male joint that fits into your water pipe comes in either a 45¡ or 90¡ angle. Thanks to the joint options and its impeccable filtration, the NucleusÊMatrix Perc Ashcatcher can help you with your future smoking experiences.