muffler/silencer for pm bullet skimmers
 

how do you get yours clean? any tips/tricks

do they need to be changed? if so, where do you get them? from the pm website?

Not sure what they look like but maybe use compressed air to blow it out like a car air filter.

Don't think they need to me changed, I think just rinsing in water should be fine. I need to replace mine on the PM3 cuz I bought it used and it didn't come with one.