Plastic Check Valve for Water and Air Lines, Pack of 10 - 5 mm to 7 mm Ends

A pack of 10 plastic check valves that stop liquids and air flowing back along a line, with a 5 mm end and a 7 mm end for joining hoses of two different sizes. The clear body lets you watch the red valve at work, which makes them handy for aquarium air and water lines.

Features

• Clear plastic body shows the red internal valve, so you can check the flow at a glance
• Stops backflow so water or air keeps moving one way along the line
• Made from wear-resistant PP plastic that resists ozone, oils and many chemicals
• Quick and simple to connect to hoses for a secure fit
• Suits water, air, oil and other liquids

Specifications

• Size: 5 mm x 7 mm
• Hose end sizes: 5 mm and 7 mm
• Inside diameters: 3.4 mm and 4.4 mm
• Outer end diameters: 7 mm and 8.9 mm
• Length: 40.5 mm
• Width: 22.3 mm
• Material: PP plastic
• Colour: Transparent with red internal parts
• Quantity: 10
• Temperature range: -20°C to 60°C
• Maximum pressure: 1.5 MPa

Package includes

• 10 x check valves (5 mm to 7 mm ends)