Sell 10pcs Check Valve Red Oxygen Pump Valve for Air Pump Accessories Fish Tank best price

Description This check is a transparent shell with a red core. It is an one way applicated in air pumps. With the durable plastic material, there is no doubt that it is a necessary accessory for aquarium and fish tank. Features - Color: Red. - Material: Plastic. - Size: 5.2 * 1.3 * 1.3cm/ 2 * 0.5 * 0.5 inch (L*W*H). - Great one way check valve. - Protect air pumps by preventing aquarium water from backflow when a power outage happens or air pump is lower than water surface. - Hard material, not easy to damage. Package Including: 10 * Aquarium Check Valves Oxygen Pump One Way for Fish Tank Aquarium Air Pump Accessories