Cheers fella. Just out of curiosity, I've just measured it and it's actually 15" :S
Thanks for the replies. I'm buying a Michelin Stealth, already have 2 on the front and rate them very highly.
Was just a pain trying to find out what size, will get a 16" today and hopefully it will fit!
I don't have a part number I'm afraid.
I purchased the fronts from Costco a few months back and can't recommend them highly enough, they're great.
However, I also purchased the rear from Costco last week, and Dephead is right, it doesn't fit. The fittings are too fat, so there is no way to fit it at all. Will have to take that one back and find a different wiper from somewhere else.
Interestingly, I measured the Costco 16" against the one I removed, and the Costco is about 1" longer.