Depending on the model, the shut-off mechanism is arranged either 90° to the left or 90° to the right of the regulator connection. On the opposite side of the knob there is a about 35 mm valve body extension put into place. This prevents the bungee loop from slipping off. Only 1 first stage can be connected. Equipped with “Full-Metal-Core-Rubber Knob” (for maximum grip).