Hollis 500SE Regulator Review

Hollis 500SE Regulator profileWith every new regulator launch comes new “hype”, most of the time I have noticed that most of the improvement is in the visual design.  The new version looks cooler, it’s black and features aggressive characteristics to portray the “Tec” image.  Well this new design isn’t really new at all.  In fact it is quite old.  If I would have seen this a few years ago I might have passed it up for the newer looking round regulators…and I would have missed out big time.

Benefits of the Hollis 500SE

  • Pneumatically balanced servo valve system
  • Patented Orthodontic Mouthpiece for comfort and reduced jaw fatigue
  • Standard with 30″ maxflex hose
  • Easily disassembled without the use of tools and underwater if necessary
  • Left or right positioning – no upside down
  • Boltsnap tie point (Hollis.com, 2015)

Hollis 500SE Regulator backsideHollis has brought back an old design with a modern look and features.  Hollis highlights these features on the regulator’s website (http://www.hollis.com/500se-dc7), the ones listed above.  Of those bullets I feel that there are 2 that need to be mentioned again.

First the statement, “Easily disassembled without the use of tools and underwater if necessary” is an understatement.  I was a bit skeptical when I read this but wow this regulator is unbelievably easy to disassemble.  All you have to do is twist off the plastic nut that holds in the hose and pull the interior of the regulator out…done!  That is seriously it.  This is amazing for cleaning or removing debris.  To go hand-in-hand with that, the service kit is minimalist due to the simple, but reliable construction of the 2nd stage.  I would like to thank Hollis for this design because it makes yearly overhauls simple and time saving.

Hollis 500SE Regulators on BCDSecond, “Left or right positioning – no upside down” design makes for great application during stage/deco/bailout bottles, sidemount setups and finally air-sharing.  Students no longer have to worry about regulator orientation and an air sharing exercise can be done in the blind.

One of the most important features of the regulator (for me) wasn’t highlighted by Hollis and it definitely needs to be mentioned.  For those of you who know me know that I primarily dive a PRISM 2 eCCR.  The CCR is probably the greatest tools for underwater videography because there are no bubbles that ruin your shots, no giant distortions covering your subjects…just clear water.  This is where the 500SE makes it’s money.  For the divers out there that can’t afford to dive a CCR and want to minimize bubble intrusion in your videos this is the single greatest option…and at a fraction of the cost.

This past weekend I shot tons of video underwater (which I am still scrubbing through) and the 500SE’s performance related to video was fantastic.  At almost no time did the bubble ruin a shot or distract from the video.  I didn’t have to think about breathing during my scene captures…simply amazing as far as I’m concerned.

Hollis 500SE RegulatorSo how did the 500SE perform in the water?  Excellent, and I am sure that didn’t surprise you.  The 500SE breathes extremely easy and I didn’t have any issues with free flows during any dive, ascent/descent etc.  The mouthpiece is very comfortable and I didn’t endure any sort of jaw fatigue or feel any pull or push…the regulator rested perfectly in my mouth and was barely noticeable.

Drawbacks of the Hollis 500SE

I honestly could not find a downside to this regulator.  These regulators have now retained a permanent home on my gear for all my OC dive setups.

Summary

Would I recommend this regulator?  YES! Who would I recommend this regulator to?  This regulator makes deco/bailout tank streamlining a breeze.  It is also great for beginners who want a high-performance regulator that can meet recreational and technical diving demands as well as feel comfortable in their mouths during long dives.  Finally and without a doubt I would highly recommend this regulator to every open circuit videographer out there, especially those non-professionals that implement multiple cams like GoPro cameras on helmets.

Was there a question that I didn’t answer?  Still want to know more?  Feel free to comment below, I love to hear our feedback.