4mm Aquarium Oxygen Pump Check Valve - Prevents Backflow In Fish Tank.

This 4mm check valve is an essential accessory for any aquarium enthusiast, designed to ensure the smooth operation of your oxygen system by preventing harmful backflow in fish tanks. The compact valve efficiently prevents water from siphoning back into your air pump, safeguarding it from potential damage. Ideal for both freshwater and saltwater aquariums, its durable construction guarantees reliable performance and a long lifespan. Easy to install and compatible with standard 4mm airline tubing, this check valve is a must-have for maintaining a healthy aquatic environment. Weight: 0.1 Manufacture country: China Instructions included: No