M239D 4" x 4" x 2-1/8" Drawn Metal Box With Concentric 1/2" & 3/4" Knockouts and Raised Ground
4" x 4" x 2-1/8" Drawn Metal Box With Concentric 1/2" & 3/4" Knockouts and Raised Ground - Square - Steel Construction - Fire Rated - Square - Steel Construction - Fire Rated