Inside the one-room house, the reclaimed-redwood platform bed hangs on slender steel rods fastened to the ceiling. The ceiling cap is a vent--the house's thermostat.
Camco 40034 RV Sewer Plumbing Roof Vent Cap Polar White. This universal cap is a must have in your RV parts bin. One of my vent caps crumbled to pieces and this only took 5 seconds to fix!
Ventline Metal Plumbing Roof Vent Cap - Star Mobile Home Supplies
Speedi-Products EX-RCGU 03 3-Inch Diameter Galvanized Umbrella Roof Vent Cap * You can find more details by visiting the image link.
Speedi-Products EX-RCGU 03 3-Inch Diameter Galvanized Umbrella Roof Vent Cap
BUILDERS BEST 012633 Black Metal Roof Vent Cap (6"" Collar)
Wall and Roof Vent Caps
BUILDERS BEST 012634 Black Metal Roof Vent Cap (6-8 (3.25 x 10) Universal Flush)
Took some doin' but we did finally get all those wires pulled through the conduit.
Roof vent cap