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Two-Way Freeze Protection Damper
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Protects air valve freezing
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Manufactured under a certified ISO 9001 quality system
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Available in sizes 4", 6", 8", 12"
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Minimizes the flow of cold air into vaults through vent pipes
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Allows Air Valves to function at full rated capacity
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Wafer design minimizes space requirements
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Body - High Density Polyethylene
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