• Clear plastic aquarium check valve with red internal seal, used for preventing backflow in air pump tubing.
  • Aquarium air pump check valve with red seal, showing size measurements 2 inches by 0.5 inch, fits 3/16 inch airline tubing, and weighs 0.1 oz — displayed with olive green and ocean blue brand colors on light background
  • Aquarium air pump one-way check valve diagram showing correct air inlet and outlet directions with blue arrows, labeled to prevent back siphoning and protect the pump — features red internal seal on white background.
  • Labeled diagram showing aquarium airline tubing setup from an air pump to a sponge filter, including clear tubing, check valve, connectors, suction cup, lift tube, and sponge filter inside a planted aquarium with gravel substrate and rising bubbles.
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AquariumVille

Aquarium Check Valve – One Way Non-Return Air Pump Connector

Aquarium Check Valve – One Way Non-Return Air Pump Connector

$6.49 USD
$6.49 USD
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Keep your aquarium setup safe and reliable with this one-way check valve, designed to prevent water from back-siphoning into your air pump. Made from durable, clear plastic with a red internal seal, this lightweight valve is small but essential for any aquarium air system.

Features:
• Prevents water from flowing back into your air pump
• Fits standard 3/16 inch airline tubing
• Compact design – only 2 inches long and weighs just 0.1 oz
• Easy to install in any freshwater or saltwater setup
• Works quietly for long-term use

Perfect for use with air stones, sponge filters, and bubbling decorations — helps keep your fish and equipment safe.

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