Features: Silent operation with low working noise. Stable performance and reliable working condition. Wide range of applications. Suitable for aquariums, chemicals, liquids, and dosing additives. Pump head designed for easy disassembly, cleaning, and maintenance. Used in various fields such as experimental research, biochemical analysis, pharmaceuticals, fine chemicals, biotechnology, ceramics, water treatment, and environmental protection. Flow direction can be controlled by positive and negative connection. Simple to operate. 100% and high quality Quickly disconnects airflow Fits most 1/8 inch airbrushes and hoses Suitable for installation between the airbrush, connecting tubing, and air pump Compatible with most airbrushes and hoses with 1/8 inch fittings Material: Alloy Length: 1.8 cm (approx.) Color: Silver Package Includes: 2 pcs Airbrush Quick Disconnect Coupler Hose Features: Maintains Pressure and Flow: Ensures consistent water pressure and flow in your system with this 110V Pump Controller Switch, providing a reliable and efficient water supply. Easy Push Button Operation: Simplify pump control with easy-to-use push button controls for hassle-free and user-friendly operation. LED Indicator Lights: Integrated LED lights provide clear visual indicators for real-time pump status monitoring. Automatic Water Detection: Automatically stops the pump when no water is detected, helping prevent damage and conserve energy. No Pressure Tank Needed: Eliminates the need for a pressure tank, saving space and simplifying installation.