Apeks MTX-R (no gauge) socks Effectively swim underwater to consume

Effectively swim underwater to consume less air

Another option is to study by reading the Divemaster Manual and watching the Divemaster Video (a book and DVD package)

medium or high power

barometer and 3-axis electronic compass

Apeks MTX-R (no gauge) socks Effectively swim underwater to consumeThe MTX R has excellent cold water performance and has a greatly reduced risk of free flow. This has been achieved by improving several areas, including an innovative endcap and environmental diaphragm, a forged 1st stage body offering maximum thermal preference, a ribbed diaphragm clamp and a redesigned & enlarged heat exchanger on the 2nd stage with metal incorporated into the front cover design.