Johnson Outdoors Scubapro is recalling about 670 X650 Second Stage Regulators. A manufacturing error could cause the main housing of some regulators to change shape over time, which could cause the cover and diaphragm to become dislodged. If this occurs, air flow will be interrupted and the regulators will no longer function, posing a drowning hazard to users. Affected regulators have a visible bump located on the right side of the unit between the letter “C” and where the mouthpiece attaches to the regulator body.
