.75 ID hose. Fits Nilfisk Advance AquaMAX
Fits Nilfisk Advance 56212086 (alt # 56212086)Replaces
Nilfisk Advance 56212086 Fits
I used the curb cleaner for about 5 minutes and the 2 of the fitting didn’t shoot water out of them and the curbs would not clean. Do not like at all.