Formula 409 or 409 is an American brand of home and industrial cleaning products well known in the United States, but virtually unknown in other places.

[1] The flagship product was invented in 1957 by Morris D. Rouff, whose Michigan company manufactured industrial cleaning supplies.

[2][3] Formula 409’s original application was as a commercial solvent and degreaser for industries that struggled with particularly difficult cleaning problems.

In 1960, Rouff sold Formula 409 to Chemzol, a New York firm, for an amount in the low six-figure range.

In the mid-1960s, entrepreneur Wilson Harrell, along with longtime friend David Woodcock and television personality Art Linkletter, bought Formula 409.

The music video features band members using spray bottles of Formula 409 Glass and Surface Cleaner to clean the windows of the Lafayette Coney Island restaurant in downtown Detroit.