Your regulator's electronic solenoid valve is the absolute heart of automated carbon dosing. Because aquarium plants only consume carbon dioxide when the lights are on, leaving your gas running 24/7 will cause massive nighttime pH crashes that can quickly suffocate your fish and shrimp. The electronic solenoid gives you the power to plug your regulator into a standard light timer or smart plug, automating your daily gas cycle. If your current solenoid is buzzing excessively, running dangerously hot, or stuck permanently open or closed, this official UNS Solenoid Replacement lets you swap out the dead electrical coil and restore a safe, automated routine in minutes. Key Features & Benefits Instantly replaces a dead, stuck, or overheating magnetic coil to restore automated on/off gas scheduling. Universal dual compatibility works seamlessly across both the UNS Mini and UNS Pro Dual Stage Regulator. Prevents deadly nighttime pH fluctuations by ensuring your gas cuts off reliably when the aquarium lights turn off. A simple electrical overhaul kit that eliminates the need to buy an expensive replacement regulator assembly. This listing includes a replacement solenoid ONLY. CO2 regulator not included with purchase.
