Heng's 90112-C1 Universal Vent Lid, 14 x 14 Inches - Smoke....this what I used on mine, replaced both with these at $15 each from Amazon I can afford to replace them every 5 years if I need to. I think the smoke holds up better than the white. They can be a little tricky to get the crank connected to them, try not to bend it too far out to get it to hook in. Check YouTube for videos to help.
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