No gills? No Problem. The SCUBA Regulator converts the high (generally 3000psi) cylinder pressure to just above ambient levels, allowing the diver to breath. With this technology breathing underwater is effortless. The first stage component of the regulator comes in balanced and unbalanced models, piston or diaphragm. Each functions differently at depth, some offer extra features improving smooth respiration. Take a minute and browse our extensive selection of top manufacturer's equipment and also consider some key accessories to get the most out of your new regulator!