Dual Adj 62X regulator. The new unit features a tiny first stage that is the smallest one Mares has ever brought to market. The Dual Adj 62X is 10% smaller than its previous version, the 52X, and has 30% less volume, making it the perfect traveling companion. The regulator packs a powerful punch in a small package and offers a host of features, including: Auto Sealing Technology (AST) to prevent water ingress into the first stage. A new poppet seat for improved performance. Ease of Breathing at all depth, even at a depth of 200m/660ft. Twin Balanced Piston (TBP) for excellent performance in cold water.