General description The Aquarium Water Changer is a versatile 3-in-1 cleaning kit designed for efficient water changes, sand washing, and dirt suction in aquariums. It features a built-in double airbag system for effortless operation and a 3D filter net to protect fish and small gravel from being sucked out during cleaning. The kit includes a duckbill suction inlet accessory for easy removal of sludge and debris. Technical specifications Material: PP-ABS Airbags: 2 thickened airbags for quick water pumping Filter: Internal filter to prevent gravel clogging Powerful suction: Enhanced by two enlarged air chambers Installation Quick assembly in one minute Assemble the water inlet and outlet Press the siphon switch several times until the water fills the drain pipe Release the siphon switch to allow water to flow out automatically Usage Suitable for various types of aquariums Includes spliced extension tubes for different tank sizes Four basic combinations available: 2 tubes; 2 tubes +