HATELI 6 PCS Aquarium Check Valves for Common Air Pumps Red Plastic One Way Non Return Valves Pump Protectors for 4mm Inner Diameter Airline Tubing Fish Tank Accessories for Aeration Setup

HATELI 哈特丽. Efficient, effective protection for your pump. Great one way check valve for aquarium air pump. Non Return anti siphon valves to protect your electrical equipment. air pumps etc). Compatible with standard aquarium air pipe of 4mm inner diameter. Small and compact, easy to install. Specifications: Material: Plastic. Color: Transparent, Red, Black. Suitable for: Aquarium FishTank Air Pump. Package Included: 6×Aquarium Valve or 1xRandom Color). For Oxygen Pumps Only: Great one-way check valve for most common aquarium air pumps. NOT suitable for CO2 or other high-pressure systems to avoid crack and leak. Ideal Pump Protectors: Prevent backflow of water through the tubing during a power outage or pump pause. Essential accessories for basic aeration setup in your fish tanks. Sturdy Quiet: Made of reliable plastic which can be tightly connected to the hose without air leak. Durable to endure long-time use without making noise. Easy Maintenance: Clean the valve regularly. Please po