uxcell 5 Pcs Blue Plastic Air Pump Outlet Check Valves for Aquarium Tank
Protect you air pump by preventing aquarium water from back siphoning during a power outage.Place in your airline tubing between your air pump and aquarium water to prevent water returning down the air line.
Product Features
- used for water treatment, air purification, auto parts, industrial machinery, household appliances
- Good quality material, safe and nontoxic.
- Stable characteristics, high reliability.
- Easy installation and replacement.
- Arrow marked on valve, showing fluid flow direction
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