Overview Reviews Product Description Raco 2150 Set Screw Conduit Coupling Material: Zinc Plated Steel Size: 2-1/2 Inches EMT/IMC/Rigid. Product Videos Custom Field Size 2-1/2 Material Steel Product Reviews Write a Review Write a Review × Raco Raco 2150 Set Screw Conduit Coupling Material: Zinc Plated Steel Size: 2-1/2 Inches EMT/IMC/Rigid Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name Review Subject * Comments *