Gray's Quarry sidemount the instrument's face is divided

the instrument's face is divided into three different colored zones: the area from 50 BAR | 600 PSI and below is highlighted in red with a solid BAR and red stripes

Cap opening with Cam-lock

The end part has a corrugated piece that is smooth on the inner side and keeps the snorkel away from the mouth during use when scuba diving

Advanced collision avoidance system ensures reliability using multiple transmitters

Gray's Quarry sidemount the instrument's face is dividedGray Quarry is a 501 c3 non profit organization that seeks to promote the sport of scuba diving by providing a safe family friendly fun environment for recreational scuba diving and training. Bottom depth is approximately 60 feet deep, with no thermocline, and visibility from 20ft. to much better, depending upon the quarry's activity.