1/2-inch Rigid and IMC Push Install 5-Pack RMC Coupling, Gray. Removable and reusable, SIMPush Fittings install quickly without tools or the need to threading conduit. Simply pushing the fitting onto the conduit. Never bother with threading conduit ever again. Never thread conduit again with SIMPush, push-to-install conduit fittings. Manufactured with corrosion resistant copper free aluminum and powder coated for excellent durability. Works with threaded or non-threaded RMC, IMC, GRC and ARC conduit. NEMA 4X, IP66.