Staff Answer
Sep 28, 2026 - 06:15 AM
The 620505 lower outside vent fits a 17-13/16" x 6-3/16" cutout, so it's slightly smaller than your 18-1/8" opening. Its flange may still cover the hole. Check the outside frame dimensions before ordering two. It's in stock.
If you have any questions, just reach out at info@rvfridgeguys.com or call us at 800-712-8822. You can find everything we carry at www.rvfridgeguys.com.
