Thomas & Betts RE53-TB Reducing Bushing Brand: Thomas & Betts. Part Number: RE53-TB. T&B Reducing Bushing, Explosionproof, 1-1/2 to 1 in, Steel, Zinc Plated. Additional Description: TB -RE53-TB 1.5 IN-1 IN, REDUCING BUSHING, XP BUSHING, XP. Catalog Description: 1-1/2 Inch to 1 Inch Reducing Bushing, Steel Zinc Plated..