4″ BLACK Round Rotaire Grille Heat AC Air Duct Outlet Vent 3840BK RV Trailer
360 rotation, easy installation and long term durability. Accepts 4″ flex duct.
See tape measure pictures.
Approximate size:
Grille face diameter 5 1/2″
Back diameter 4″
Side: 2″
Please let me know if you have any questions.
Thank you,
Babette
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