Description: COPPER JOINT: the joint is made of copper, strong and corrosion resistant, making you feel at ease during use . RUBBER TUBE: The tube part is high quality rubber material, resistant to sea water and aging, bending for a long time can also straighten back, strong and durable . HIGHT PERFORMANCE: Our Scuba Pressure Gauge uses fine workmanship, innovative design and novel sealing technology, which can make high precision . FEATURE: The gas supply can reach 1000 liters/min, and 500 liters/min at 20bar. It is semi fixedly connected to the back plate and can be rotated up and down. It is easy to disassemble and install the gas cylinder. pressure relief . WIDE APPLICATION: Suitable for most BCD inflator valves, great and essential accessory for professional scuba divers . Specification: Material: Copper, Rubber, Stainless Steel Color: Black Size Chart: High Pressure Hose and Pressure Gauges : 150cm/59.06inch Medium Pressure Hose: 110cm/43.31inch Package Includes: 1 Piece Scuba Diving Pressure Gauges with Pressure Hose Note: 1. Please allow slightly error due to manual measurement. 2. Due to the difference between different monitors, the picture may not reflect the actual color of the item. 3. Wish you a wonderful online shopping!