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Proprietary "Connect and Clean" Unger handle/pole fitting required to use with extension poles; handle is not threaded to be able use on universal poles requires a proprietary (seemingly unavailable) adapter.
This makes window washing so much more effective. My wife and I cleaned the house windows in record time using this scrubber and our newly refitted squeegee. Not only in record time but they look great.
This item is perfect for my windows at home. I borrowed a larger version & found it awkward to use. Also, the borrowed one didn’t fit in my bucket. This new one is ideal size for me and my bucket of course