0.5L small gas bottle+water adapter

The 0.5L scuba tank provides 5–10 minutes of underwater air supply at depths of 1–10 meters (actual duration depends on lung capacity and diving depth). This lightweight mini diving vest is designed for effortless portability and ease of use.Featuring a real-time pressure gauge, it continuously monitors remaining air supply in the cylinder, enabling you to: DIDEEP Portable Diving Lung System is crafted with: ✔ Aerospace-Grade Aluminum – Multi-layer processed for high-pressure resistance (up to 3000 PSI) and anti-corrosion durability. ✔ Food-Grade Silicone Mouthpiece – Non-toxic, odor-free, and crack-resistant for safe, comfortable breathing. This diving tank supports 3 filling methods for flexibility: 1️⃣ High-Pressure Hand Pump Manual filling (25-30 minutes) Best for remote locations without electricity 2️⃣ Refill Adapter Transfer air from a standard scuba tank Note: May not achieve full capacity 3️⃣ Electric Air Compressor (Fastest) Fully refill in just 8 minutes Most convenient for frequent divers