The best idea yet! Soak them in alcohol, use a pipe cleaner to help clean them. Just rinse and reuse. Can be adjusted depending upon the size of bowl as the hole for filter may differ in size.
Simple concept and design that works great. Keeps ash out of my bong without the expense and clumsiness of an ash catcher. Highly recommend this product. Try it, you'll like it.
I love this thing. It fits perfectly in my 10mm GRAV cup bowl. It totally keeps the ash/debris out and it stays in there when I tap it out.
Works well in my pipe and stays in place making it harder to lose. I use alcohol to clean it. Will buy more as needed! Easy to use!