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it helps to filter the bad smell with its electro and ultrasonic technology
When the timed cycle completes
providing versatility in application
the skimmer improves disinfection
The bottom of the tube connector is 8mm or about 5/16 inches
Air Stone Large 3 Inch Ball Diffuser for Fish Tank Aquarium Air Pump BTC Pumps it helps to filter theMAIN PRODUCT FEATURES: HEALTHIER WATER: This air stone works to create bubbles that will help to oxygenate and filter your water. It will help circulate the water in your tank and create a healthier environment for your aquariums fish and plants. PERFECTLY SIZED BUBBLES: These air stones are made from a quality carborundum material that promotes high density, uniform, and more delicate bubbles. These beneficial bubbles are perfect for any aquarium