10 Pcs Non-Return Check Valve, Aquarium Air Pump One-Way Check Valve Waterstop Aquarium Air Pump Accessory for Fish Tank Pond (7mm)
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Product description
- Humanized design Wonderful accessory for aquarium air pump. Using plastic material, beautiful and
- Easy to use 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 the water or below the water surface, and there will be no backflow of water when the air pump stops working.
- safe to use Prevent the water in the fish tank from flowing back into the air pump and burn the air pump to avoid danger.
- Optional design 3 different sizes for you to choose, meet your different needs.
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