For those that saw my two Perdix AI for sale, the same reason applies here. I'm done teaching for a bit, and my regular tec partner is med down for a while, so I'm offloading the gear I don't need. For sale here is a brand new, in box, Dive Rite RG5400 deco regulator. I paid $249, yours for $220 shipped to the lower 48. Paypal friends and family please.