Photo 1 of Pawfly Aquarium Air Stone Bar Bubbler 12 Inch, Fish Tank Bubbler Stone with 4 Suction Cups Square Oxygen Diffuser for Air Pump Fish Tank Pond and DWC Reservoir, 4 Pack

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Photo 1 of Pawfly Aquarium Air Stone Bar Bubbler 12 Inch, Fish Tank Bubbler Stone with 4 Suction Cups Square Oxygen Diffuser for Air Pump Fish Tank Pond and DWC Reservoir, 4 PackPhoto 2 of Pawfly Aquarium Air Stone Bar Bubbler 12 Inch, Fish Tank Bubbler Stone with 4 Suction Cups Square Oxygen Diffuser for Air Pump Fish Tank Pond and DWC Reservoir, 4 Pack