Koi Pond Airpump Fish Pond Air Pump / Aquarium Tank Hydroponics 45-200 L/MIN

This valve is designed to prevent the flow of water/air back to your system. Fits 4mm standard aquarium airline. Why Ozone Resistant?. – Ozone will break down any material that are not “Ozone stable” PVDF will ensure that the Ozone produced by ozone generator units such as our Ozonair Unit will not attack the check valve and cause it to fail.

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