The AquaFX Creep Killer is a dual electronic finger float solenoid system designed to automate your water production and storage with precision. This advanced controller effectively eliminates Total Dissolved Solids (TDS) creep by creating a wider high-low range for refilling your reservoir. By preventing your RO/DI system from frequently cycling on and off for small top-offs, it ensures you are only collecting the purest water possible, protecting your sensitive reef inhabitants from contaminants. This comprehensive kit comes equipped with all the essential components for a complete installation. The system includes a reliable 3/8" solenoid valve, a high-level finger float, a low-level finger float, a central relay box, and a 3/8" bulkhead for secure mounting in your reservoir. It operates on a standard 110V plug, integrating seamlessly with most home and aquarium setups. Please note that some assembly is required and the water storage tank is not included. The Creep Killer is the ideal solution for dedicated reef aquarists who demand the highest quality water and want to maximize the lifespan of their expensive RO/DI filters. If you are tired of prematurely exhausting your DI resin due to TDS creep, this system provides a robust and reliable fix. By automating your water production between two set points, it saves you time, money on replacement filters, and provides the peace of mind that your aquarium is receiving consistently pure, 0 TDS water.