It annoys me to no end that Dometic seems to only allow North American sales of the
Seitz windows to manufacturers, thus forcing humble camper builders like ourselves to order from Europe, live without, or use convoluted tactics to get them. WTH?, given that these are routine items in European Camping World equivalents.
I don't know of any practical alternatives. My Unimog camper's windows were Seitz equivalents from a competitor in the Netherlands, but even if they're still in business, they'd be no easier to source. Windows like those from Armor Vision are beautiful and eliminate the Seitz shortcomings, but are multiple times as expensive. If you find a good alternative, let us know and we'll elect you to the cabin builders' Hall or Fame.
I've written about this before, but have so far failed to strike the right entrepreneurial chord: The Anhui Maygood RV Accessories Ltd. company in China makes 27 sizes of an acrylic window that are, in the Chinese way, pretty much as exact replicas of the Seitz design. A few years back, one of our builders who needed five windows had the minimum order of ten shipped, used his five and then sold the remaining five on eBay. His report on the windows was that they seemed equivalent in all ways.
Sadly, the minimum order now appears to be twenty pieces and, of course, the shipping cost is gruesome, but it still seems that there is money to be made by someone investing in a minimum order and then selling the windows individually. With reasonable organization, potential buyers could submit their size requirements prior to the order so they got what they needed. The windows could be sold for Seitz window prices, which should leave some profit for the investor/organizer.
So, as they used to say about ideas on
Histeria! . . . Take it; it's yours.