For technical diver and frequent underwater explorers requiring reliability gear for depth dives, cave systems, or extended underwater missions with multiple equipment setups The stainless steel spools integrates a 360 swivels mechanism and quick vents valves cores, ensuring tangles without operations and buoyance adjustments during dives Engineered for accuracy, these high pressures swivels spools maintain ±1% pressures accuracy for gauges, features 3000psi stainless steel construction ideal for professional scubas diving accessories For high stress environment like wrecks diving or depth sea exploration, where secure gauges connection and rapid air management is critical for diver Universals compatibility with 90% of interfaces ensures seamlessly integration with leading dives brands, eliminating equipment mismatch issue during multiple gear expeditions