Pawfly Check Valves Aquarium One Way Non-return Valve Air Pump Accessories for Fish Tank Black
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<b>[Product Information]</b><br>
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<li>Great one way check valve for aquarium and fish tank.</li>
<li>Protect you air pump by preventing aquarium water from back siphoning during a power outage.</li>
<li>Detachable design makes it easier for you to clean and repair. Unscrew to open it.</li>
<li>Air Hole Diameter: 0.16" / 4 mm, Overall Size: 1.7" x 0.6" / 4.3 x 1.5 cm (L* D), Net Weight: 4 g.</li>
<li>Package Content: 6 Pcs Air Check Valve, 100% Money Back Guarantee if they don’t work.</li>
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