This regulator is made up of the new 2nd stage xs compact with elastomer cover combined comes with the traditional cressi ac2 piston 1st stage. Its strengths lie in its extreme lightness, excellent performance, very easy maintenance and affordable purchase price. Full pack with first and second stage + octopus. Suitable for beginners, diving, schools and rental. Self-lubricating jacketed cylinder. Sintered cup filter. 4 low pressure outlets. 1 high pressure outlet