Product Information Material: Aluminum Female Thread: NST (NH) swivel Male Thread: NST (NH) Height: 17.0" Length: 12.0" Width: 8.0" Select a Product Part NumberFemale Thread SizeMale Thread Size FMGR45F50F(2) 5"4-1/2" FMGR40F45F(2) 4-1/2"4" FMGR50F45F(2) 4-1/2"5" FMGR40F50F(2) 5"4" FMGR50F40F(2) 4"5" FMGR40F40F(2) 4"4" FMGR60F60F(2) 6"6" FMGR50F60F(2) 6"5" FMGR40F60F(2) 6"4" FMGR45F40F(2) 4"4-1/2" FMGR45F60F(2) 6"4-1/2" FMGR45F45F(2) 4-1/2"4-1/2" FMGR50F50F(2) 5"5"