Swing Catch
This catch allows the diver a quicker, easier removal of the helmet. As of January of 1996, this part is standard on all SL 27® helmets.
Stainless Steel Bands
Bands hold the Hood/Face seal in place on the mask frame. They also provide the mounting studs for the Head Harness (Spider).
Whisker Wings
Retrofits to many previous Kirby Morgan Helmets and BandMasks®, has less breathing resistance than the older single valve exhaust while providing an extremely dry hat. The Tri-Valve® Exhaust is made of a chemical resistant compound.
Head Harness (Spider)
Keeps the mask in place on the divers head. The neoprene rubber spider has adjustment holes for varying the tension of the harness.
Air Train
The air train diffuses incoming breathing air/gas onto the face port/lens to defog and ventilate.
Gas Supply Non-Return Valve
Gas Supply Non-Return Valve prevents loss of gas pressure in the event of umbilical damage, preventing a "squeeze".
Side Block
Multi use side block has additional ports built in to provide controlled air flow, if needed.
Communications
Communications are “non-modular” (like the SuperLite 17B helmet). When ordered with a male waterproof connector (for 4-wire communications), the mask will also include bare wire posts. When ordered with bare wire posts (for 2-wire communications), the port for the MWP connector is plugged.
Communications
Communications are “non-modular” (like the SuperLite 17B helmet). When ordered with a male waterproof connector (for 4-wire communications), the mask will also include bare wire posts. When ordered with bare wire posts (for 2-wire communications), the port for the MWP connector is plugged.
Regulator Adjustment
Provides demand regulator adjustment for a wide range of incoming air pressure. In addition, it can serve as a steady flow valve. Some divers prefer a slight steady flow on surface supplied air when air consumption is not a factor.
