Please define what they are. Interested.

Jeff

PS: Mine lacked the screen doors when we got it.

I've done several residential jobs with this type of screen, both add on and ready to go with factory door units. I'm less than impressed. The roller assembly is a little tricky - basically they're Grandma's window shades, turned on their side with the addition of very light and flexible screen instead of whatever the heck those green things were made of way back when. The bottom track has top remain very clean or things get messy when the upper and lower don't work in perfect unison.

For the very particular homeowner with a house that doesn't float, household help and no kids or pets I think they're great...

Parts for our doors can be had at Blaine Window, https://www.blainewindow.com/catalog/index.cfm

Keep them in mind for your doors and windows at home, too.

I saw the phantom screens at a boatshow once and was fairly impressed. The track for my screen doors is long gone but a set of phantom screens will mount inside the sliding doors and be out of the way when retracted. I put a drawing of it on the forum some time ago. Phantom will cut them to any size.

Side screens are also a problem. I am going to put open-weave material on the outside of the windows for privacy and to keep out the bugs. I saw a boat with it and liked it a lot. I already have screens for the windshields.

Just a matter of time and money really.