My 2005 40 FDTS Alpine has Dyna wiper blades about 28 1/2" long. I couldn't find any refill blades which fit, so I replaced the whole blade.
Trico Exact Fit 28" long part # 45-280
available at most auto parts stores for under $20 and I got a buy one/get one free rebate.
I did have to drill out the center mounting hole to fit the bolt, which was a pain. But next time I will only have to replace the refill blade which is cheap, easy and available everywhere.
uses Trico refills # 45-280
or NAPA #60-2800