Nose Block Device allows the diver to block the nose to equalize ears.

Multi use side block has additional ports built in to provide controlled air flow, if needed. The stainless steel sideblock has a built in EGS.

The 455 Balanced regulator sets a milestone in surface supplied breathing performance and is compatible with all Kirby Morgan Helmets and Band Masks that feature the SuperFlow® 350 regulator. The regulator body is made of 316 stainless steel, as are all its other metallic components.