Blizzard (SRB5900): The Name Says It All.

Professional or enthusiast, if cold-water diving's your thing, Blizzard is your
regulator. Sherwood's Blizzard is the first regulator specifically designed for
these extreme conditions and the top choice of cold-water divers worldwide.
Here's why:
• Sherwood's unique first stage valve
• Plated fins and heat sink retain the warmth of your exhaled breath to prevent
freeze-up or second-stage free flow.
• The sealed first stage keeps water from entering, virtually eliminating the
chance of freeze-up.
• Two, primary-flow ports boost outlet pressure to the second stage for easier
breathing
• Sherwood's exclusive baffled-and-extended exhaust tee reduces bubble size and
moves them out of your line of vision - also reduces regulator bounce and jaw
fatigue
• A Wisdom®
mouthpiece comfortably eases the bite needed to hold the regulator, further
reducing jaw fatigue
• This regulator works smoothly, no matter how cold it gets