This is when I dispise Northwood Manufacturing. You'd think finding a form fit and function dome skylight at a reasonable price would be easy - NOPE.
Internal (inner) hole measurement is 14x20. Outer skylight dimension (flange to flange) is 16.75 x 24. The long 24 inch line butts right against the roof rack vertical post mount. That measurement - from the roof mount vertical post abeam to the dome is 1 and a half inches (basically the skylight flange width).
So, go out there and try to find a tinted Skylight (at least a 4.5 inch dome) and outer flange (24 x 16) to fit....so far an exhaustive search an no joy.
I am gonna hate calling the manufacturer for a form fit and function replacement as I know this particular piece is unique. Just pixxes me off! Depending on that call and price I may just go this route (thanks Traver8):
http://www.rvskylights.net/acrylic-skylights250.htm
