10Pcs Aquarium Air Pump One Way Non Return Check Valve Waterstop Accessory KRI✈️
Feature: \n 1. Using plastic material, beautiful and durable.\n2. When the position of the air pump is lower than the water surface, prevent the backflow of water from damaging the front air pump or other equipment. After adding the check valve, the air pump can be placed above the water surface or below the water surface, and there will be no backflow of water when the air pump stops working.\n3. Prevent the water in the fish tank from flowing back into the air pump and burn the air pump to avoid danger.\n4. Wonderful accessory for aquarium air pump.\n5. 3 different sizes for you to choose, meet your different needs. \n\nSpecification: \nCondition: 100% Brand New\n\nItem Type: Non-Return Check Valve\n\nMaterial: plastic\n\nColor: As picture shown\n\nOptional Size: 3mm, 5mm, 7mm\n\n3mm: The interface diameter is 3mm/0.1in\n5mm: The interface diameter is 5mm/0.2in\n7mm: The interface diameter is 7mm/0.3in\nSuitable for: Aquarium air pump\nFunction: Used as an oxygenation pump due:
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