You don’t even need that really the pad that they do would be enough and it could be less than half the size that I’ve seen on previous brushes,as far as brushes go I’ve tried more or less all of them all makes bristle type etc,the 4 I’ve mentioned imo are all you need to WFP windows they cover as I’ve said every type of window you’ll come across on a day to day basis.
If I went out in the morning with only 1 brush “flocked extreme sill”I’d know I’d be fine for the whole day or I’d get by with no issues,the medium sill I’d always have for a good deep clean on PVC plain glass and the fact I could be sure if given the sills a very good clean the DuPont ultimate is great for really dirty windows and is ideal for maintenance cleans,small panes with no sill that just need a maintenance clean extreme medium.
Honestly nothing else is needed 150 notes you are sorted.