Coralife Pure Flo II Reverse Osmosis Float Valve Length: 6 . Width: 2 . Height: 7.5 Cora life is one of the markets leading manufacturers of premium aquarium products The Cora life replacement float valve controls water production in reservoir tanks It is compatible with the Pure-Flo II and Pure-Flo III Reverse Osmosis water purification systems Coralife is one of the markets leading manufacturers of premium aquarium products The Coralife replacement float valve controls water production in reservoir tanks