The oem blades measured 31" on my 2019 Vista..I replaced them with readily obtainable 28" from Autozone..they sweep 11/2" lower and I really don't feel the need for anything longer...Direct replacement no tools needed...
My $5 wiper blade solution... For a 2004 Itasca Horizon 40AD
...Today I was in Walmart and picked up some replacement wipers so hopefully this information will the OP with is newer coach, but if not then may this reply will help a lot of people who has double-wiper arms... and are are both frustrated with the cost of Trico Wipers and the difficulties of finding their size... almost everywhere.
I don't know when Winnebago went to a different wiper design on their Class "A" RVs that uses a double-panogragh design? ...Does anyone know?
I'm guessing everything before 2010 might use this style, but that's just a guess.
If your wiper panograph uses the same wiper as my coach, you are in luck!
For years I searched here and there and every time I found a Trico Wiper Display they would be out of my wiper type. And when they had it it was something like $20-$25 EACH! ...What a rip-off!
My wiper is about center support is ~3/8" wide, maybe 7/16", and it has a screw and tiny... tiny nut holding it place. And all the replacement blades that I looked at, don't have the hole for the screw. Of course, if you found a narrow enough wiper mount, then you could drill that hole if you had too, but why do that if you can buy the right wiper for $5 each?
First let me say, the wiper needs to be able to move or float or drag across the window; and it must conforms to the curvature of the windshield. And while my RV calls for a 24" wiper blade, you can use a 26" if that's all you find.
However, from my experience, the 26" blade on my windshield does not work any better than the 24" blade.
Anyway, for $5ea. at Walmart, you can buy this band of wiper (see picture) that works like any wiper if you ask me. So, hopefully, this style will work for you too. And BTW, at $5 each I keep an extra set. (Take that Trico!)
TIP: Since you will be examining your wiper arms, you should also check behind the panograph and tighten any loose nets in the wiper mechanism... and apply some lube.
Thanks to everyone who responded to my question about replacement wiper blades for my Adventurer. I went to NAPA and purchased the replacement blades and after figuring out how to install them they worked just fine.