A: Hi Gary, Thank you for your question on model RVK1A. The type of ducting that should be used would depend on the unit that is being ducted. Please call our Technical Support Team at 800-637-1453 with the model number of your unit. Our Team will be happy to provide assistance.
A: 4 inch.
A: Hi Loves2Hike, Thank you for your question on the model RVK1A roof kit. The model 636 roof cap is included with this kit and is compatible with a 3" or 4" duct size.
A: The duct size for this vent is 4 inches.
A: It is 4"
A: I don't have it in my hand since it is installed but I would say it's 4 inches long. It is separate from the main box when you buy it and you have to screw it into place underneath. Hope that helps!
A: Probably between 3 & 4 inches
A: Hi Bill, Thank you for your question on the RVK1A roof venting kit. The 636 roof cap is included with this kit. There is no collar included with the 636. We do include a the crimp collar in this kit which screws into the model 636. That collar is 3.215" long.
A: Typical Flap damper
A: A damper is not needed, the fan already has it installed.
A: Hi Lamne, Thank you for your question on the model RVK1A roof venting kit. The roof cap that is included with this kit will have a built-in back draft damper.
A: I used these for my bathroom exhaust fans. They were vented in attic so I ran them thru the roof with these vents.
|Brand||Gibraltar Building Products||Broan-NuTone||Active Ventilation||Broan-NuTone|
|Name||4 in. Black Plastic Roof Cap Vent||3 in. to 4 in. Roof Vent Kit for Round Duct Steel in Black||8 in. Dia Aluminum Vent Pipe Cap in Black||Roof Cap with Built-In Damper for 6 in. Round Duct in Black|
Add to Cart to See Price
|Net-Free Area (Sq. In.)||12.56||13||50|
|Features||Built-in Screen,Paintable,Stainable,UV Resistant||Built-in Screen,UV Resistant||Corrosion Resistant|
|Mounting Position||Roof Mount||Roof Mount||Roof Mount|
|THD SO SKU||1000684526|
|View Product||View Product||View Product||View Product|