High accuracy flows control regulator with anti detachment design ensures stable oxygen supply for aquariums,crafted from durability for extended lifespans. Features tool without installation in second and regulable airflows to meet oxygen needs. Ideal for both novice and experienced aquarists maintaining freshwaters tanks,saltwater ecosystem. Perfect for bedroom aquariums or office fish tanks requiring quiet operations (30% noises reduction) and backflow. Engineered with double mechanisms and corrosions resistant construction for reliability in continuous underwater use.