DSV 300

#DRT-DSV300

We set out to improve WOB on the O2ptima and have achieved that with the DSV 300. The improved WOB puts the O2ptima in line with rebreathers that cost much more and in some cases, now outperforms them. (Click DOWNLOADS to the left to see test results).

The WOB improvement is entirely based on the DSV change of a larger bore and new mushroom valves. The loop hoses have remained the same size. Hoses now attach with locking rings, making assembly easy and the mushroom valves are now in the hose inserts rather than the mouthpiece. The DIVA mounts on the hose-side of the locking ring moving it farther from center, which is easier to see and not obstructive to the diver's view.

The O2ptima continues to have the smallest breathing loop on the market.

  • WOB - O2ptima with DSV 300
    Informative article about the WOB changes on the O2ptima with the launch of the DSV 300. Posted Nov 24, 2010.
  • WOB Test 2.5L CL & 40RMV
    WOB test results from Micropore, Inc. lab of the DSV 300 with O2ptima 2.5L counterlungs at 5 ATM and 40 RMV
  • WOB Test 2.5L CL & 62.5RMV
    WOB test results from Micropore, Inc. lab of the DSV 300 with O2ptima 2.5L counterlungs at 5 ATM and 62.5 RMV
  • WOB Test 2.5L CL & 75RMV
    WOB test results from Micropore, Inc. lab of the DSV 300 with O2ptima 2.5L counterlungs at 5 ATM and 75 RMV
  • [continued]
  • WOB Test 3L CL & 40RMV
    WOB test results from Micropore, Inc. lab of the DSV 300 with O2ptima 3L counterlungs at 5 ATM and 40 RMV
  • WOB Test 3L CL & 62.5RMV
    WOB test results from Micropore, Inc. lab of the DSV 300 with O2ptima 3L counterlungs at 5 ATM and 62.5 RMV
  • WOB Test 3L CL & 75RMV
    WOB test results from Micropore, Inc. lab of the DSV 300 with O2ptima 3L counterlungs at 5 ATM and 75 RMV
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Dive Rite is the pioneering creator of technical SCUBA diving equipment for advanced, wreck and cave diving. Our Catalog is vast, ranging from backplates, harnesses and wings (BCDs) to regulators, lights, drysuits and rebreathers. To purchase Dive Rite technical dive gear, find a dealer near you. Also, see the Tech Tour schedule to learn if the Dive Rite team will be near you soon.