Product Description :
	Leinuosen 20 pack aquarium air pump check valves plastic one way non-return check valve air pump accessories for fish tank, black 
 
Features: 
Application: 
The check valve can be applied for common aquarium air pumps, protect you air pump by preventing aquarium water from back siphoning during a power outage. 
 
Quality: 
Made of quality plastic, durable and sturdy, not easy to break, ensure long time of usage. 
 
Practical design: 
The valves are detachable, you can unscrew to open it so as to clean and repair them easily. 
 
Specifications: 
Overall length: approx. 4.2 cm/ 1.7 inches 
Air hole diameter: 4 mm/ 0.16 inch 
Color: black 
 
Package includes: 
20 x Air pump check valves 
 
Note: 
Manual measurement, please allow slight errors on sizes.
Product Details :
	- Batteries Included : No
- Brand : Leinuosen
- Material Type : Plastic
- Manufacturer : Leinuosen
Product Features :
	- Application: the check valve can be applied for common aquarium air pumps, protect you air pump by preventing aquarium water from back siphoning during a power outage
- Quality: made of quality plastic, durable and sturdy, not easy to break, ensure long time of usage
- Practical design: the valves are detachable, you can unscrew to open it so as to clean and repair them easily
- Measurement: the air hole diameter is 4 mm/ 0.16 inch, the overall length is approx. 4.2 cm/ 1.7 inches, proper size for most fish tank
- Package contents: 20 pieces air pump check valves, sufficient for daily using and replacement; Color: black