Abstract: A weight release system for selectively releasing weights from an underwater diver. The weight release system includes at least one pocket attached to a buoyancy control device or a weight belt. The pocket includes an interior portion for retaining weights. A zipper is located on the pocket. The zipper is positioned on a bottom portion of the pocket. A cord runs from the zipper to a handle. Pulling the handle opens the zipper, causing the weights retained in the pocket to fall from the pocket.

Abstract: Apparatus for coupling a compressed gas supply hose to a gas pressure regulator includes first and second elbow fittings, each of which has opposed male and female ends. The male end of the first elbow fitting matingly engages a female fitting on the pressure regulator and the female end thereof is in mating engagement with a complementary male end of the second elbow fitting. The female end of the second elbow fitting is attached to a male fitting on one end of the hose. The male end of the first elbow fitting is constrained against rotation about a lateral axis, along which the male end of the first elbow fitting is connected to the pressure regulator, so that the first elbow fitting is substantially inhibited from rotation with respect to the pressure regulator. The first and second elbow fittings are rotatable with respect to one another about a vertical axis extending between the aforementioned lateral axis and another lateral axis, along which the hose is connected to the second elbow fitting.