this cap has a 28 mm diameter

The mouthpiece is inverted to catch ash and the bowl is roomy

so you can switch seamlessly between flower and concentrates

If you want perfect temperature control when dabbing

Pulsar High Class Ash Catcher - 45 Degree Size:18.8mm this cap has a 28Boost the performance of your favorite piece with the High Class Ash Catcher by Pulsar. This premium accessory is engineered to boost the filtration of your water pipe and to keep your piece clean for longer. It has a large main chamber with colored disc perc that offers powerful filtration even before the smoke reaches your pipe. The ash catcher is available in a 14 mm and 19 mm option and fits female jointed pipes with a 45 degree joint orientation.