The Hog D1X a Balanced 1st with Environmental first stage regulator is designed for Technical Divers! Technical divers demand performance, durability, and dependability from their gear... HOG delivers. At a shockingly low price. You can easily pay three times more and get a less capable regulator. High-Pressure Ports: 2 HP Ports Low-Pressure Ports: 5 LP Ports First Stage Type: Diaphragm, Balanced Environmental Kit Swivel 1st Stage 5x3.5 inches\12.7x8.89 2 lbs\0.907185 kg