I recently purchased a new Katadyn Vario water filter and have used it once on the trail. (I did flush it with tap water at home before using it for filtering).
It worked as advertised, but I have decided I'd rather go to a gravity filter.
I brought it home and cleaned it out (as directed in the manual) with a tap water/bleach solution, then disassembled it and dried the parts before re-assembling. There is a small brown stain on the glassfiber filter (from the bleach solution/carbon I think??????), but it appears to be cosmetic only (filter still functions fine).
I have the zippered sack with the filter and all the accessories (cleaning kit, lube, spare O-rings, hoses) that came with the filter, but the original packaging is not included (I threw the box away).

Asking $50. (shipped USPS Priority included) and prefer PayPal payment, but will also accept USPS money order.