ISTA Auto Top Off Float Valve

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ISTA Auto Top Off Float Valve Float valve can maintain proper aquarium water level and automatically add water. Benefit: Avoid purple idle running. Make sure the protein skimmer wo rks properly. Stabilise the specific gravity of saltwater tank. Slow down the change of water condition. Can be used for tank up to 12mm. Equipped with 6mm pipe connector, easy to install Show more