Roof Vent Cover Recommendation for Fan-Tastic Roof Vent on 2018 Tiffin Phaeton
Updated 05/06/2026 | Published 05/04/2026
Question:
Hello, I am looking for a roof vent covers for my fantastic fans that are installed on a 2018 Tiffin Phaeton. These fans are operated by the Spyder Control system in the coach which gives me two options. One is completely opens an the other is completely closed. When the fan cover is completely open it stands 11 3/4” high. Is there a vent cover available that will accommodate that by chance?
asked by: Robert B
Expert Reply:
Hey Robert, the vent cover you'd want is the Dometic FanTastic Ultra Breeze Trailer Roof Vent Cover # DMC38FR that you referenced as this was designed to work with Fan-Tastic RV roof vents like what you have. While this won't allow the vent to open all the way the lid will stop once it hits the vent cover and there won't be any issues with that. Also, with the vent open only partially it will still flow the full amount of air.
(click to enlarge)
Kenneth
5/6/2026
Robert, I installed these on my 2015 Newmar Dutch Star 4369, on all three vents. Absolutely love them and would recommend them. No more worrying about if it rains or when you’re traveling. Easy install
Jameson C.
5/6/2026
Denny
5/6/2026
Hi Robert Installed 3 of these on my Allegro Bus also purchased the fine screen to go inside the exhaust grill to try and keep bugs out. No problem with air flow regardless of fan speed. No water if left open during heavy rain. Also allow you to have the vent open while traveling down the road. Hardware that comes with it makes it easy to remove and clean the cover and the fan lid.
Product Page this Question was Asked From
Dometic FanTastic Ultra Breeze Trailer Roof Vent Cover - 19.5" x 19.5" x 10.5"- Black
- RV Vents and Fans
- Vent Cover
- Roof Vent
- Plastic
- Black
- Dometic
more information >
Continue Researching
- Search Results: trailer tongue weight scale
- Search Results: sherline trailer tongue weight scale
- Search Results: propane rv gas detectors
- Search Results: max air cover
- Q&A: Does the Dometic FanTastic Ultra Breeze Trailer Roof Vent Cover Limit How Much the Vent Opens?
- Shop: Big Truck Big RV Tongue Weight Scale w/ Storage Bag for Trailers - 2,000 lbs - Adjustable
- Q&A: Will Replacement Dome Kit DMC96RR Fit Dometic Vent Fan Model DV1450?
- Video: Replacement Dome for Dometic FanTastic RV Roof Vents: The Breakdown
- Video: Comprehensive Review: Dometic FanTastic Ultra Breeze Trailer Roof Vent Cover
- Shop: Dometic FanTastic Ultra Breeze Trailer Roof Vent Cover - 19.5" x 19.5" x 10.5"- Black
- Shop: Dometic FanTastic Ultra Breeze Trailer Roof Vent Cover - 23" x 19.5" x 10.25" - White
- Q&A: Dometic FanTastic Ultra Breeze Trailer Roof Vent Cover for FV4100LWUS F81-SP
- Q&A: Recommended RV Roof Vent Cover For A Dometic / Fan-Tastic Vent RV Roof Vent
- Q&A: Comparing MaxxAir II and Fan-Tastic Vent Ultra Breeze Vent Covers
- Shop: RV Interior Lighting
- Shop: RV Propane Gas and Carbon Monoxide Detector - 12 Volt - 2 Wire - Black
- Shop: RV Propane Gas Detector - 12 Volt - 2 Wire - Black
- Shop: MaxxAir Standard Roof Vent Cover - 20" x 19" x 9-1/2" - Translucent White
- Shop: Valterra Detect-A-Leak Gas Leak Detection Fluid - 2 oz Spray Bottle
- Video: Let’s Check Out the Dometic FanTastic Ultra Breeze Trailer Roof Vent Cover
- Q&A: Replacement Propane Gas Detector for an Atwood 31013 Propane Detector
- Search Results: trailer hitch
- Video: A Look at the Power Mountain Tallboy 6 Ton Off-Road Bottle Jack with a Military Cargo Trailer
- Article: Trailer Wiring Diagrams
- Shop: Trailer Hitch
- Shop: Trailer Wiring
- Video: Feature Review - Big Truck Big RV Trailer Jack Foot Scale with Tongue Weight Gauge
- Article: How to Measure for Trailer Hitch Drop
- Search Results: trailer tires and wheels
- Q&A: Does etrailer Carry Furrion Chill Cube w/ Heat Pump to Replace Dometic Duo-Therm
on RV Vents and Fans
Dennis
5/5/2026
Hi Robert, I installed the Dometic cover over my Fantastic fan. It is true, the fan can not open completely and I also noticed a slight difference in the sound of the fan as it tries to push air through a reduced opening. That being said, I’m very happy with the Dometic cover and I’m able to leave my vents open without fear of rain getting inside. I would purchase again.