Penn-Plax Check-Value front-facing close-up of a clear inline aquarium air filter with integrated one-way check valve and ribbed hose barbs; transparent plastic body visible, for aquarium air pumps and air stones to reduce particulate clogging and prevent siphoning, often used as a safeguard when disconnecting airline tubing.
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Penn-Plax
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Penn-Plax Check-Value

Key item features

Provides clean filtered air to your aquariumKeeps your air pump safe from water damageReduces particulate matter that can clog air stones other devicesPrevents siphoning due to a power failure or when disconnecting other accessories
  • Provides clean filtered air to your aquarium
  • Keeps your air pump safe from water damage
  • Reduces particulate matter that can clog air stones & other devices
  • Prevents siphoning due to a power failure or when disconnecting other accessories

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