Whirl-Pak B01291 Cleaning Brush - 6 ft. (1.83 m) L. 1" (2.54 cm) Diameter Bristle

After prolonged use, residue and filmy deposits may build up inside the Sludge Judge

Also, check out Nasco B01450WA Whirl-Pak® Stand-Up Bags - 42 oz. (1,242 ml) - Box of 2