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Pentax 18-55mm f/3.5-5.6 II WR Zoom LENS | eBay
Same company sells it for about $120-$130 through Amazon when I looked. This is pulled from a (K7) kit; it was originally listed as from a Kx kit, but I confirmed it was the WR version and they corrected the listing.
This is a better deal than I have seen used, and even cheaper than the Amazon sale (last year?)
I should get mine Tues. or Wed. and will update the thread to confirm it arrives as advertised.