Hollis 210/H-O2 100% Oxygen Service Certified Regulator H-O2 1st Stage 210 2nd Stage

Cleaned and assembled in a clean room environment with specially designed materials, halocarbon based lubricants and color-coded for easy identification. Comes standard with 300 BAR/4500 PSI DIN connection and 40" in. /101 cm regulator hose. The perfect option for this regulator is the Hollis Brass PSI or BAR pressure gauge with 6"in./15 cm HP Hose. This coupled with its outstanding reliability make it`s the only choice for technical divers. Do not attempt to use this product with enriched air until you have obtained training in Nitrox use with mixtures containing over 40% O2 by volume, from a nationally recognized training agency. Aluminum Ring optional. With the bulletproof design of the Hollis HP5 first stage the H-O2 Tech Regulator is certified for up to 100% oxygen service thanks to highly specialized component materials and manufacturing processes