Tackle tougher than usual debris on your water fed jobs. Attach your favourite euro style brush to the front end and you've got the Bronze Tough attachment on the back end to assist.
Bronze wool is abrasive enough to remove bird droppings, pollen and bug splatter, etc. yet gentle enough not to scratch glass. Plus, bronze wool doesn't rust like regular steel wool so these pads last a long time. Simply wash out the pad after use. Replacement pads available here.
Pad holder can also work with Unger cleaning/wash pads and white scrubby pads around 6"x9" or bigger.