Description
- FUNCTION: Protect you air pump by preventing aquarium water from back siphoning during a power outage.
- MEASUREMENT: Air Hole Diameter: 4mm/0.16inch, Length:5.3cm/2.1inches, Height:1.35cm/0.53inches.
- APPLICATION: Proper size for universal air pump, fish tank, aquarium, fishing tackle shop, etc.
- MATERIAL: Made of high quality Plastic material, not easy to aging, sturdy and durable. Detachable design makes it easier for you to unscrew, clean and repair.
- PACKAGE: 20pcs one way non-return valves, which are enough for daily use and replacement.
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OTOTEC20PCS One Way Non-Return Check Valve Aquarium Air Pump Accessories for Fish Tank Fishing Tackle Shop Air Line Tube Tubing Hose Pipe Fitting 4mm Red Plastic
