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3/4" 21-Ar Air Vent 133# 5/64" for Armstrong International Part# D500631

Existing reviews

Helpful Product Insight

The older unit needed replacement part on our appliance ended up being caused by a failing part. Access was a little tight behind the panel and the replacement solved it.

From: Guest | Date: 6/24/2025 9:36 AM

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Repair Outcome

The appliance suddenly stopped working properly on our appliance ended up being caused by a failing part. Installation wasnt too difficult overall and the replacement solved it.

From: Guest | Date: 7/28/2025 9:36 AM

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Repair Outcome

The original component had worn out over time on our appliance ended up being caused by a failing part. Installation wasnt too difficult overall and the replacement solved it.

From: Guest | Date: 2/11/2026 8:36 AM

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Replacement Observation

Took around thirty minutes from start to finish while replacing the old component because the older unit needed replacement part. Everything powered back on correctly afterward.

From: Guest | Date: 4/5/2026 9:36 AM

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