The Trigger Systems Crystal ATO 10 Gallon is a premium acrylic reservoir designed to house RO/DI water for your aquarium's auto top-off system. This essential equipment automatically replenishes evaporated water from your reef tank, ensuring consistent water levels and stable salinity, which is crucial for the health and well-being of your corals and fish. Crafted from durable 1/4 inch thick acrylic, this 10 gallon reservoir measures 10 inches long by 16 inches wide by 15 inches tall, preventing bowing over time. It features two 0.25 inch OD hose ports for easy connection to your ATO pump and sensor lines, along with a dedicated opening for wires and hoses. A precisely fitted lid minimizes evaporation from the reservoir itself, while the rounded and polished top edges add a sleek finish and enhance safety. This Crystal ATO reservoir is an ideal choice for reef aquarists seeking to maintain a stable, thriving saltwater environment with minimal daily intervention. Its 10-gallon capacity offers ample top-off water for several days to a week, depending on your tank's evaporation rate, making it perfect for small to medium-sized reef systems. Investing in this high-quality ATO reservoir helps ensure consistent water parameters, reducing stress on your aquatic inhabitants and providing peace of mind.