New Sponge is a TV commercial that appears in the episode "Model Sponge."
The product shown in the commercial is a kitchen sponge, used by Hans to wipe sinks, showers, and clean up the toilets.
Role in episode
In the TV spot, SpongeBob plays a role as a kitchen sponge, which is used by Hans to clean a dirty bathroom. When Hans wants to clean a toilet with SpongeBob, the latter objects and resists his treatment.
After this, SpongeBob retires, deeming the job of cleaning the bathroom not right for him. In the TV Spot, the photographer calls SpongeBob the "New Sponge."