The RSV-1 is a modular control valve that allows a diver to switch breathing gas supplies in less than a second.

The RSV-1 is particularly useful to a Public Safety Diver utilizing a full-face mask. 

The RSV-1  allows the diver to switch to their alternate air supply without removing their mask (a valuable feature when diving in toxic or hazardous locations).

The RSV-1 allows divers the ability to assist a entangled diver by being able to pass off a spare tank or connect a surface gas supply to the RSV-1. 

With the white button down and the safety clip installed, the RSV-1 is routing the breathing gas through the threaded fitting which is the Primary gas supply.

Release the safety clip and press the button on the bottom of the RSV-1 and the RSV-1 is routing the breathing gas through the quick disconnect fitting and you are on your alternate supply

(which is indicated by the brightly colored band at the top of the RSV-1 shuttle.

With only one moving part, maintenance is easy. Simply freshwater rinse the RSV-1 along with your other dive gear.  

Dry the RSV-1 and remove only one screw in order to disassemble and grease the "O"-rings.

The RSV-1 is made from Delrin (a high tech engineering plastic from DuPont).

The fittings are made from stainless and all "O"-rings are Viton.

The three connection ports are identical, which allows the RSV-1 to be configured to suit the dive mission. 

RSV-1 adapters and configurations currently available for: Interspiro AGA mask, OTS Guardian, EXOxmask, and most standard regulators with a 9/16-18 thread.

Quick disconnect fittings include: AGA, Seaquest Air Source, and Scuba ProAir 2 fittings.

Harness mount and customized fittings are available. The RSV-1 is intended for use by Public Safety, Military, Technical and Commercial Divers.