The Hollis Prism 2 is a fully closed circuit Rebreather, ideal for exploring open ocean, cave, or wr..
The Hollis O2 Sensors for the Explorer. Measures the amount of Oxygen. Critical for safe rebreather ..
The Hollis Explorer is a true recreational Rebreather. The unit is neither a fully closed circuit Re..
The Hollis CO2 Monitor measures the amount of CO2 passing through your scrubber unit; advising you h..
The Hollis Prism 2 BOV is the newest accessory for the Prism 2 eCCR. A lightweight, high performance..
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