$90 shipped Halcyon single tank adapter.
The convertible stainless steel single tank adapter allows for secure mounting of a single tank. Divers who are able to remove unnecessary weight from their waist enjoy greater comfort and better in-water position. The Halcyon weighted single-tank adapter places an additional six pounds between the backplate and single cylinder, removing weight from your waist and encouraging a more comfortable in-water position. The weight is easily removed during travel or when less weight is required. Includes straps with Super Cam Buckles (no weight).
The convertible stainless steel single tank adapter allows for secure mounting of a single tank. Divers who are able to remove unnecessary weight from their waist enjoy greater comfort and better in-water position. The Halcyon weighted single-tank adapter places an additional six pounds between the backplate and single cylinder, removing weight from your waist and encouraging a more comfortable in-water position. The weight is easily removed during travel or when less weight is required. Includes straps with Super Cam Buckles (no weight).