Hubbell Raco 665 1 7/8" Deep, 1/2" end Knockouts 4" x 2" Handy Box Extension

Steel City 73151-1/2-3/4 4-11/16" x 1-1/2" Deep Square Box Extension Ring

Raco 699 3-1/2" Deep 5-Gang Masonry Box

Raco R-ASE Octagon Junction Box RASE

Raco 250 Extension Ring, 2 Gangs, Galvanized Steel, Square Box Type

RACO Electrical Box Cover Single Gang Hub for Octagon Box Shape, in Overall LG

Raco 778 Mud Ring, 2 Gangs, Galvanized Zinc, Floor Box Type

RACO Plaster Ring: Open/Raised, 1 in Raised Ht, Steel, 4 in Overall Lg