The two-piece, snap-together design covers all screw heads and offers a clean updated look. The base section and screw-hole placement is identical to the #3840 and no alterations are necessary to exchange the two parts.
The Rotaire line offers the ideal properties for increased efficiency in all heating and air conditioning applications: 360 rotation, easy installation and long term durability. The Rotaire Grille has an over-all diameter of 5-1/2" and is designed for accepting all types of 4" Flex Duct.
More Information
Item #
83508
Model
3940WN
Color
Walnut
Features
Plastic two piece snap together design shows no screw holes.
Designed for accepting all types of 4" Flex Duct.
Rotates to direct air flow.
Easy installation and long term durability.
Increased efficiency in all heating and air conditioning applications.
Included
(1) Round Register
Dimensions
See Diagram Above for Dimensions
Over-all diameter of 5-1/2"
Designed for accepting all types of 4" Flex Duct.
Net Weight
.20
Gross Weight
.20
Special Order Item
No
LTL Freight
No
Customer Reviews
Price
5
Value
5
Quality
5
Gives my added vents an OEM look
Review bysmkettner
My RV came with restricted heater vents causing the burner to cycle too much. This vent register enabled me to add two additional vents and get the heat I need into my RV trailer. Easy install with 4.5" hole saw and two screws. Gives factory appearance. The extra airflow is really working great. The furnace burner no longer cycles from overheating and the RV heats up so much better. The front rotates to direct the airflow some but not as much as I expected. Definitely happy with the product.