Royal Pipe Systems™ manufactures a complete line of Ultra Duct pipe and fittings. Our PVC Ultra Duct pipe and fittings are used for hydro and underground utilities. It can be buried in soil or encased in concrete. Our pipe and fittings are available in 50mm - 150mm (2” - 6”) diameters and are CSA C22.2 No. 211.1 certified. PVC Ultra Duct is a high quality product that has high crush and impact resistance and is the choice of contractors, utilities and municipalities and can be used for both direct burial and concrete encased applications for power utility primaries and secondaries, street lighting and communication distribution systems.