Highland Compact DIN First Stage. 

Features:

• Compact, low profile first stage
• Flow-by piston design
• One HP and two MP ports pressure ports
• Factory set I.P. at 135 to 145 psi at 3000 psi
• Direct attachment to 200 or 300 bar DIN connection
• Includes Delrin DIN Cap
• Clean for pre-blended nitrox up to 40% 02
• Download Owner's Manual