Bissell CrossWave HydroSteam Dirty Water Tank for 3515, 3518 MC-6647 and it is the dark

and it is the dark gray version

A poor connection at this joint is unreliable and can generate heat

the motor or its components may need replacement

Swap in a fresh bag before it reaches capacity to maintain peak performance from your Oreck UPRO14T

It is the protective trim that rides the front of the machine and takes the contact with furniture legs

Bissell CrossWave HydroSteam Dirty Water Tank for 3515, 3518 MC-6647 and it is the darkThis genuine Bissell CrossWave dirty water tank assembly (Part #163 4578) fits HydroSteam wet dry vacuum models in the 3515 series and model 3518. The dirty water tank collects the soiled water, debris, and residue pulled up from your floors during cleaning, keeping that mess separated from the fresh solution supply. A cracked, cloudy, or poorly sealing recovery tank causes suction loss, leaks, and odor retention. Swapping in this factory correct