Valterra Heating/ Cooling Register - Round White - A10-3335VP Catalogue Page_P. 364 Trailer & VR but they are taller so

but they are taller so there may be a gap between the bottom of the shroud and the roof of your RV:

Mounting location: Floor mount

7-1/2 Inch Height x 12 Inch Width x 20 Inch Depth

Outside Layer Takes The Abuse Of The Sun And Abrasion While Inside Layers Keep The Hose Leak Proof

It doesn’t take a degree in Quantum Physics to be able to determine that stronger is better

Valterra Heating/ Cooling Register - Round White - A10-3335VP Catalogue Page_P. 364 Trailer & VR but they are taller soHeating Cooling Register; Round; 4 Inch Diameter Vent Hole 5 1 2 Inch Outside Diameter Flange; With Damper; White; Plastic; WIth Installation Hardware; With Retail Packaging Offers The Ideal Properties For Increased Efficiency In All Heating And Air Conditioning Applications. 360 Degree Rotation. Shape: Round Mounting Location: Duct Diameter: 4 Inch Vent Hole 5 1 2 Inch Outside Flange Color: White Material: Plastic With Damper: Yes Looking For A