The Welding Lens Assembly will fit all SuperLite® Kirby Morgan® Helmets and BandMasks®. The port retainers are supplied with two plug screws which are designed to protect the two threaded holes on the port retainer which are provided for the welding lens assembly.
The main purpose of the Restrictor Adapter is to limit gas flow in the event the hose ruptures or is severed, and to ensure the loss of supply would not be great enough to significantly affect the diver's breathing at moderate to heavy work rates.
The Hot Water Shroud can be used whenever diving operations are conducted on mixed gas, or when diving in cold water. The shroud helps warm the diver's incoming air, thereby lessening diver's heat loss.