Vats of Acid "R" Us is a factory that appears in the episode "Mermaid Man Begins."
The building is green, has brown doors, a brown garage, yellow windows, and white sign on the top that reads the store's name in dark blue letters. Outside the factory is a barbed wire fence.
On the inside of the building, there are green walls, pipes in different colors, and a giant vat of green acid.
Role in episode
Ernie and Tim (now known as Mermaid Man and Barnacle Boy) fell into a vat of green acid. Suddenly, after falling in the green vat of acid, an errant alien spaceship tipped into the vat, which carries the two blindly on a wave of acid during a solar eclipse on a leap year.