ysc3 0 Report post Posted January 6, 2013 my 3 rm corridor resale unit is currently fitted with the standard longer 4 panels sliding windows.would like to replace with the above type.contractors, feel free to send me a quote too.Thanks. Share this post Link to post Share on other sites
jimmwong 0 Report post Posted February 9, 2013 These are common siding window, just that instead of a single sliding they custom one on top of the other.I believe any reputable alu window maker can custom this for you. Share this post Link to post Share on other sites