Tremendous value with uncompromising performance. The Envoy II is an incredible value, matching or exceeding the performance of regulators costing much more. If you are looking for an economical regulator that doesn&';t compromise on performance or reliability, you can&';t do better than the Envoy! Environmentally Sealed Balanced Diaphragm 5 LP Ports 2 HP Ports Lighter weight Downstream valve Dive/Pre Dive Venturi Control Hose Length: 30 in. (.76 m)