Reach-iT's best selling COMMERCIAL Water Fed Window Cleaning System : 

40ft Reach-iT PRO cleans 4 storys and pulls apart one story at a time to clean 3, 2, and ground, giving you a lighter, safer pole at each level.  With a 7ft compact height, weighing 6lb at 40ft (10oz at ground level), Reach-iT PRO can be upgraded at any time to 5, 6 and 7 story by adding PLUS A, B, and C extensions.