Cold water divers or those frequenting harsh environments will appreciate this perfectly matched pair. The A700 is a complete complement to SCUBAPRO’s MK17, a high performing balanced diaphragm first stage, engineered exactly for such conditions. Full-metal body and components contribute to less risk of freezing and the MK17 is environmentally sealed so water cannot enter the inner mechanism.

Top performing balanced piston first stage paired with our best-selling high performance air balanced second stage; this combination is SCUBAPRO’s ultimate regulator combination. The S600 truly matches the MK25’s characteristics and, thanks to its adjustment possibilities, it adapts to all diving conditions and all diver preferences.

This system brings together the essence of SCUBAPRO regulators: unparalleled first stage piston technology and unfailing second stage performance. G250 is SCUBAPRO’s ultra classic air-balanced second stage, legendary for its reliability even in the roughest conditions. Diver adjustable VIVA and inhalation control allow for personal setting of breathing comfort.

The SCUBAPRO “workhorse”, MK2 PLUS was first introduced onto the market in 1962. This classic downstream piston remains as popular as ever, especially in schools and training centers. The simplest first stage piston mechanism ever, with fantastic performance and easy maintenance. The MK2 PLUS comes in a very compact design for a simple and reliable package that remains unmatched.

The Atomic ST1 Regulator by Atomic Aquatics features high quality stainless steel materials on the first stage, all titanium second stage, comfort swivel hose, seat saving orifice, automatic flow control and dual silicone fit mouthpiece. The first stage is made of type 316 stainless steel which is twice the strength of brass. These materials make this regulator durable and corrosion resistant.

Extreme Performance without compromise.

Exclusive Atomic Aquatics features at a mid-range price.

Atomic Aquatics believes that safe seconds are just as important if not more so than your primary regulator. Although rarely used, in some ways it is your most important piece of equipment.

Innovation at it’s best. Top performing regulator for all extremes. Patented “Diver Adjustable” inhalation. D.A.D.™ First Stage, Balance 2nd Stage.

High performance balanced diaphragm first stage with dry chamber for all temperatures, including cold or murky water