THE Second Stage for Technical Divers! Technical divers demand performance, durability, and dependability from their gear. The diver adjustable pre dive/dive selector allows for quick and easy tuning of the regulator for maximum air flow when in use but slight detuning for when it is not in use. The rugged high impact case, plastic air barrel, and high visibility yellow 40in hose to make this octopus easy and comfortable to share air with, yet light enough to almost be forgotten by the diver carrying it clipped to them. The high visibility yellow soft push front purge button means the HOG Tec-Rek Octo is easy to see and locate and more importantly easy to clear when you need that next breath of air in an emergency. The HOG Tec-Rek Octo is our highest performing conventional safe second and our recommendation for maximum diving comfort and safety.