Tank volume: 3.5 cu.ft./ 0.5 liter Tank material: Aviation aluminum Tank size: 35 6 6 cm Color: green, blue, black, custom Usage scenario: backup air for deep diving, snorkeling, fire protection, call fall into river self-rescue, training, clean boat bottom etc. Logo: customizable Breathing time: 5-10 minutes Limited depth: 10m/ 32 feet Product information: 2 3.5 cu.ft./ 0.5 liter tank, 2 breathing head, 2 storage bag, 2 anti-missing rope, 1 scuba adapter, 1 diving mask, 1 hand pump, 1 storage bag Certification: DOT, CE, ISO
