... cover 1 die cast aluminum,rigid 2 with gasket and screws 3 suitable for conduit bodies LL,LR,T,C,LB types ... screws3 suitable for conduit bodies LL,LR,T,C,LB types traded size 50,75,100,125/150 200 250/300 ... ",3"CG350/4003-1/2",4" Aluminum or steel stamped types are available