5Pcs Oxygen Pump Special Trachea Stop Valve Check Valve Aquarium Accessories

Description: Material: plastic Color:Blue,Red,Black Overall length: 36mm , the diameter of the middle circle: 8mm Two ends: inner diameter: 3mm, outer diameter: 4mm Suitable for common air pipe(innner diameter approx. 4mm) Package includes: 5*Non-Return Check Valve Note: The OUT surface is air outlset, and the other side is air inlet.

Feature: To prevent water backflow to damage the front end of the pump or other products and equipment. Each outlet needs to connect a stop valve, two-headed pump needs two stop valves, and so on.

Note: The product is measured by hand and may have an error of 0.1 cm and 1 cm. Due to factors such as photographic equipment, the actual items may differ from the pictures, please understand. Have a pleasant shopping experience and have a pleasant life,Thank you.

The merchant warrants that their products comply with all applicable laws, and are offered only if they comply with Joom's policies and EU Product Safety and Compliance laws.