You cannot breathe directly out of a scuba tank because of the high pressure. A regulator reduces pressure to safe a level that can be inhaled by the diver. A diving regulator has two parts: the First Stage reduces the tank pressure and connects it to the Second Stage which contains the mouthpiece for breathing

Hollis 221- DC3 DIN Scuba Diving Regulator


Out of Stock

Built with the same quality as the DC1, without the swivel turret, the DC3 is the ideal 1st stage for double cylinder configuration as well as perfect for single cylinders. Paired with the 221 which uses the same technology as the 212 without the dynamic adjustment . This reg set is designed for those who believe keeping it simple is best.

Pneumatically balanced second stage
Ergonomic A.V.S. Dive/Pre-Dive Switch
Patented Orthodontic Mouthpiece w/High Density Bite Tabs
Designed to withstand the rigorous CE coldwater standard
Environmental sealing prevents internal corrosion

Questions (0)

No customer questions submitted.

Only registered user can ask a question. Login

30 other products in the same category:

Compare Icon


Example: Comfortable, Reliable, Good Quality

Report an issue

Please tell us about the issue: