All like new! 1 year old, 5 divesHollis. Hd. 2000. Bc. With lead 300$Scubapro. Mk.25 reg. S550. 2nd rebuild 1 year ago Cressi. Spg 300$Oceanic geo2. Computer 250$2 al.80. Tanks in hydro and viz. 200$Buy all for 800.
The Geo3 has taken the basic operating principle of the Geo2.1 and completely reworked it. In order to achieve optimum efficiency in a wide range of circumstances it is beneficial to isolate the firing chamber from the gas supply during firing cycle so that no excess gas is lost down the barrel after the ball has exited. The Geo has always incorporated this feature by selectively controlling suppl