I was wondering if anyone knew how to build the housing for the "Alpha" moisture filter that Joe B. sells because I found the internals real cheap on the web. There the actual molecular sieve and charcoal dryer replacements that are the same ones he uses to dry the air in his filters, there the replacement filters for scuba and SCBA compressors for super dry breathable air and I figured if I could figure out how to build the housing it would a lot cheaper then spending $400. The scuba compressor replacement filters are anywhere from $24-$34. Come on guys lets figure this out together.