I recently ordered and received a Resmed Swift LT nasal mask system to replace the one I have been using for 4 years. I opened the sealed package and then realised I had ordered the wrong one. The one I have been using is a Swift FX. Why I ordered the LT I do not know. Anyway, the LT is opened but totally unused. Does anyone out there want to buy it from me? I will let it go for £60, which is just over half price.