Material used in pcp compressor filters.

[Bigbullet]

Hello,
what kinda materials do you use to get the moisture outta compressed air?
I'm thinking about zeolite,sillica or cat litter..

[avator]

I've seen this stuff crumble up and get inside of airguns. I don't use any of it. I use the tampon type filters only.
However, I don't claim to know it all and y'all are free to use whatever you choose.   

[Back_Roads]

 This sandwiched between 2 white filters to keep the particulate in.