Like most everyone I would like my own source of hpa to fill my tanks and rifles. And for the typical reasons most people have like saving travel time and cost to and from the scuba shops. I don't go through a lot of air so I would not be putting a lot of use on a unit to top off tanks. I also live in a condo and don't have a lot of space for equipment and want to avoid potential noise. Therefore I am thinking the Freedom 8 shoebox compressor would satisfy my needs. One of the most important factors is to avoid putting moisture into my tanks and rifles. To me I like the the Alpha moisture filter that Joe B. offers. I also trust the quality and performance of his products. I believe his filter costs about $400 and the shoebox will run $999. I know getting rid of moisture and particulates at all points is of the utmost importance. Joe's filter goes on the output of the shoebox. What I would like to know what kind and how much should I spend on the filter going on the shoebox in connection. I want a filter that will do what I need but not spend more than I need. A link to some appropriate filters would be nice. Also what type of fittings I would need to make connections to the shoebox, filter and compressor. Thanks Bill