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I'm looking for a replacement for the "Passivent Hygro" vent covers that have been our house... a very long time.
These appear to contain a spring, and have vents that close when there is draft of wind from the exhaust.
They measure 26cm x 16cm in size.
Any assistance in finding a suitable replacement would be really appreciated.
Jase.
These appear to contain a spring, and have vents that close when there is draft of wind from the exhaust.
They measure 26cm x 16cm in size.
Any assistance in finding a suitable replacement would be really appreciated.
Jase.
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