The hose diameter and lengths have been specifically chosen to provide the best balance of comfort and low work of breathing. The hose lengths are some of the shortest in the industry. This not only keeps the work of breathing low but also reduces drag and uncomfortable vibrations occasionally encountered with excessive hose lengths when scootering or swimming against strong flow.
The hoses have threaded fittings attached to the counterlung ends. Each fitting utilizes a double O-ring seal to help ensure loop integrity. The hoses are 12 inches in length standard. Other sizes are available for improved fit on smaller divers.