Twin Hose Regulator

Some articles on twin, hose, regulator:

Structure and Function of Diving Regulators - Twin-hose Open Circuit Demand Scuba Regulators
... The "twin", "double" or "two" hose type of scuba demand valve was the first in general use ... This type of regulator has two large bore corrugated breathing tubes ... One tube is to supply air from the regulator to the mouthpiece, and the second tube is for exhalation it is not for rebreathing but to keep the air inside the breathing tube at the same ...

Famous quotes containing the words twin and/or hose:

    That Dali is really Norman Rockwell’s twin brother kidnapped by gypsies in babyhood.
    Vladimir Nabokov (1899–1977)

    I must comfort the weaker vessel, as doublet and hose ought
    to show itself courageous to petticoat.
    William Shakespeare (1564–1616)