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We have 434 instructional videos covering a broad range of scuba diving topics. Use the video category links on the right of this page to navigate to the specific video you want to view. All videos are hosted by our professionally trained Scuba Diving Instructors with years of experience.
Do you want to make sure your underwater camera stays in top shape? Want to learn how to properly clean and store your BC? Have you ever wondered what’s so special about the Spring Heel Straps? Do you ever wonder what the advantages are to using Scooters (DPVs)? What about the differences between L.E.D. and H.I.D. lights? We have answers to all these questions, and many more in a format that is quick and easy to understand.
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Length: 01:146773 Views
This demonstration video goes over the features of the Hollis DC3 212 & 221 Balanced Regulator. The DC3 212 Regulator comes with an over-balanced first stage achieves superior performance by increasing your air flow the deeper you go and a pneumatically balanced second stage. The DC3 212 Regulator features an environmentally sealed first stage provides greater reliability, less maintenance and higher performance. The 212 second stage comes with a "diver adjustable" air flow and a "diver adjustable" venturi to prevent unwanted free-flow. Whereas the 221 second stage comes only with a "diver adjustable" venturi to prevent unwanted free-flow. There are easy grip controls even while wearing gloves.