Poseidon Regulators

Poseidon Regulators are Now Available

Dive the Benchmark for Performance Regulators

Whether you dive with air, trimix or oxygen, the Xstream range outperforms all other regulators. First regulator certified to 200 m / 656 ft. Thanks to its durability, reliability, high performance and excellent breathability in any environment, the Xstream is the regulator of choice for the US Navy, US Coast Guard, NYPD and anyone who prioritizes a safe, successful and serene dive.


  • Side purge prevents current-induced free flow
  • Side vent diverts bubbles from face
  • EAN 40 ready and compatible
  • Works perfectly either way up, or from left or right side
  • Only regulator certified for 200 m / 656 ft
  • No environmental sealing required for cold water



Order Yours Today!



Learn More About How We Teach and Travel!


Looking to start your Scuba adventure, brush up on old skills, or learn new ones? We’ve got you covered! We offer all kinds of courses and instruction, ranging from basic Open Water Certification through Leadership level training. 

Additionally, we want all our divers to be successful and also safety focused. For this reason, our Open Water courses are limited to 5 students per instructor and we provide quality equipment for students to train with. 

Our ocean training dives typically take place in Monterey and can also provide referrals to complete the ocean dives in another location.

Have a specialty you want to learn more about? We also offer specialty by request basis. Get in touch with us today!


Learn More About Classes


As a part of our ongoing commitment to making a difference in our community, DOER’s Diving Excursions help connect more people directly to ocean exploration.

As such, we’re excited to offer many different diving experiences for advanced and novice divers alike. Come join us on one of our Catalina diving adventures, or help us combat ocean pollution by accompanying us on our Dives Against Debris.

Additionally, for those local to the bay area we offer local guided dives in Monterey Bay, with locations ranging from Point Lobos to San Carlos Beach.

Lastly, join our newsletter or inquire at the shop about upcoming international diving trips!


Learn More About Trips



Our Brands