Nice to see a fellow Maryland'er! The two goto off the shelf companies for regulators are GLA and CO2Art. BUT, the best quality regulator is either a used 2 stage regulator you buy off of e b a y and you add the post-body kit yourself, or one that someone on the forum already built and is selling in the for sale section.Been looking around for a good Co2 Regulator set for my 125gal would like to find a company that will stand behind of there product