Hose Fittings Garden Irrigation Watering System One Way Non-Return Check Valve Air Pump Aquarium Fish Tank Accessories Red Black 100 Pcs (Color : Black)

Warranty: 3 years product warranty is provided. If you have any questions about this product, please feel free to email or call us. We will replace it or refund your money for any reason.Description:100% and Great one way check valve for aquarium air pump;Protect you pump by preventing aquarium water from back siphoning during a power outage;Small and compact,it's easy to installCompatible with standard aquarium air pipe of 3.5~4mm inner diameterSpecification:Product name: One Way no return Check ValveSize : Inner Diameter 4mmColor: Red,BlackApplication : Aquarium air pump,Garden Irrigation Pump,Fish TankPackage include:100 Pcs x One Way no return Check ValveNoteIt is manual measurement, there may be 1-2mm error.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!

• Fits garden hoses, sprinklers, nozzles and other garden watering tools for a wide range of applications
• Great one way check valve for aquarium air pump;
• Protect you pump by preventing aquarium water from back siphoning during a power outage;
• Small and compact,it's easy to install
• Compatible with standard aquarium air pipe of 3.5~4mm inner diameter