Steel, 4" square, flat, blank. UL listed.
1-1/2"X10FT EMT CONDUIT(THINWALL$28.79
724 COVER,4" RND 1/2KO$2.39
2PK 1-1/2" RGD 2HL STRAP$1.99
2PK 75W ST19VIN LED BULB$12.99