Features 6649216 Gallon / 120-lb drum coverHas pump opening, mounting holes and tie-down brackets. Order tie-down rods separately. (Fits 12.75" - 15" OD Drums)Use with pump models 662402 and 662409 944205 Gallon / 35-lb pail drum coverHas 2-inch NPT(F) bung opening and three hold-down screws (Fits 10.23" - 12" OD Drums)Use with Thunder 5-gallon bung pumps 9442116 Gallon / 120-lb drum coverHas 2-inch NPT(F) bung opening and three hold-down screws. (Fits 13-1/8" - 14-7/8" OD Drums)Use with Thunder 16-gallon / 120 lb. bung pumps 9442255 Gallon / 400-lb drum coverHas 2-inch NPT(F) bung opening and three hold-down screws. bung pumps (Fits 21-7/8" - 23-5/8" OD Drums)Use with 55-gallon Drum Cover Models LM2250E-41-B and LM2350E-41-B