4"x 4" x 2-1/2" Deep Square Steel Handy Box with 1/2" & 3/4" Knockouts
4 Square Flat Square Steel Cover w/1/2 Knockout in Center
4 Square Single Toggle Switch Cover
BTAS-3 Filter Drier Cartridge 13.3 Cu in
BTAS-4 Filter Drier Cartridge 26 Cu in
BTAS-5 Filter Drier Cartridge 36.5 Cu in