The Fluval Bio CO2 Pro Refill 125/250 is a unit specifically designed for the Fluval brand aquariums. This product comes in a quantity of 4 units, ensuring a convenient and efficient way to replenish your aquarium's CO2 supply. With this refill, you can easily maintain the optimal water quality and create a healthy environment for your fish and other aquatic animals. Perfect for aquarium enthusiasts looking to keep their aquatic pets thriving.
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