palehorse51 said:pore size. the .45 are for pre filtering. the .22's remove the smallest particles and spores.
healthfreak79 said:I always thought i was .45 for oil based products and .33 for water based.
jstforme said:you mean .22? ive heard different things as far as water and oil, my take on it is if you want to use a .45 go for it but to get the cleanest product your going to need a .22 but i woudlnt bother filtering stealth, you will be fine