Thomas & Betts 1351 Industrial Fitting Pipe Spacer Brand: Thomas & Betts. Part Number: 1351. T&B Industrial Fitting Pipe Spacer, 1-1/4 to 2 in, For Use With: Rigid/IMC Conduits, Surface Mount, Malleable Iron, Hot Dipped Galvanized, 5 in L x 1-3/16 in W. Additional Description: TB -1351 1-1/4 - 2IN PIPE SPACER E-GALV IRON. Catalog Description: Pipe Spacer, Electro-galvanized Malleable Iron, Use with Conduit Sizes of 1-1/4 Inch, 1-1/2 Inch, and 2 Inch for Use with Rigid/IMC Conduit..