ABOOFAN Backflow Preventer Check Valve for Ventilation Systems Non Return Valve for Air Conditioning Exhaust Fans Quick Installation Efficient Water Flow

Package List 1 x Vent Duct Connector Features -Nominal diameter: 110mm/4.33in ventilation system parts -Color:White air vent duct connector flange -Material:ABS check valves -Size:10.50X10.50X8.50cm/4.13X4.13X3.34in wall flange vent connector -Outer diameter: 103mm/4.06in check valve ventilation -Provide secure and quick installation fitting, easy to connect and disconnect, your working efficiency air duct vent. -Pipes, Pipes, or any other pipes that only need one-way airflow to connect to this non -return device air vent connector. -Made of ABS material, , not easy to aging, ensure vacuum check valve. -Easy to use, the duct connector is simple to operate, suitable for personal or professional use ventilation valves. -Smooth surface without burrs, the tube connector is simple to install and will not hurt your hands ventilation pipe check valves.Goods Informationair check valve Made of ABS material, sturdy, wear-resistant and for long-term use.ventilation pipe check valves Reasonable design makes it easy to install and use, bringing you more convenience.ventilation system parts This connector has a return flap to prevent air return.ventilation tube It can be widely used in air conditioning, exhaust fans, range hood

• Ventilation tube--made of abs material, and safe for your families simple design makes it practical,air vent duct connector flange
• Plastic check valve--this product's appearance design is simple and generous, but the product is reliable and practical,vent connector
• Duct hose connector--made of abs material, , not easy to aging, ensure ,backflow device
• Dryer duct connector--exhaust vent cover louvered close automatically when not in use and it can be practical,ventilation system parts
• Ventilation system pipe connection--well abs material, very for a long term use the check valve is carefully crafted, good texture, not easy to damage,air vent duct connector