Shark WD101 HydroVac XL 3-in-1 Vacuum Brush & Filter Replacement Kit - Compatible with Shark AW201, WD201, WD100, WD200, WD101 HydroVac Models - Replaces WDFF1 & WDB1 Parts - Perfect for Deep Cleaning Carpets & Hard Floors

I got my Shark Hydrovac in November, around thanksgiving. I’ve used it nearly daily since. My dirty water is always gross. (We have 5 cats, 1 dog and 1 9 year old). I had previously ordered the Shark brand replacement roll, and while it worked like the original, it worked like the original ... which for me is slightly too short. We have textured tile in about half of the house and the original roll seems to wipe mostly the top texture and not the whole tile at times. Also it doesn’t even think about getting into the grout lines. THESE brushes are better in my opinion! The nap is slightly longer and I can tell it’s getting the texture on the tile surface better as well as sometimes will even get into the grout lines. Grout lines/tiles are never exact and even so it doesn’t deep clean them all but I’ve noticed several places that I’d been meaning to get down and scrub because the original roller missed something and this new roller actually got up out of the grout line! Other than seeming to scrub my textured tiles and grout better than the original, it works as if it were original and does just what it’s supposed to do. The sponges seem to fit perfectly into my plastic holders too.To prolong life and prevent smells after I mop I clean out any hair or debris from the roller area, wash/rinse brush and put back soaking wet, run a cup or two of water through, dump and clean dirty container, then run the self clean cycle. Once that is done I dump and clean the dirty container again, wash sponge and set out to dry and set roller out to dry, leaving the dirty container and roller cover cracked for air flow. This keeps the machine “clean” and stink free for the next use.I’m so glad I decided to order an aftermarket brand of roller brush because one of my main complaints was I didn’t think the nap on the original brush was long enough to clean effectively. I mopped yesterday as well as the day before with the new brush roll. I’ll say I did notice the dirty water was a bit less dirty the second day ... maybe because the full tile was getting clean and not just the highest texture, therefore just spreading old dirt around. Just a theory. I’ll definitely order these again! (If you change anything, make the nap ever so slightly longer to get into grout even better).