Storm Scuba Scuba Regulator Swivel - 360°旋转调节器适配器，适用于深潜、浮潜、水肺潜水等水下探险活动

I saw a swivel on an Atomic regulator and it was really interesting.With a normal hose, the first-stage doesn't stay right in your mouth. The hose always pends up or down.You can improve it by changing the hose (for a hyper-flexible hose) or buying a swivel.I bought the swivel!I changed it myself - it's very easy to do.It worked perfectly and I am loving it!