ISTA Auto Top Off Float Valve – clamps on to side of your glass tank. Float valve can maintain proper aquarium water level and automatically add water. Benefit: Avoid purple idle running. Make sure the protein skimmer works properly. Stabilise the specific gravity of saltwater tank. Slow down the change of water condition. Includes mounting bracket. Can be used for tanks with glass up to 12mm thick. Equipped with 6mm pipe connector, easy to install Click for all Water Level Control products at Rebel Pets.
