The inherent structural strength of the fittings guarantees durability and reliability for long term service. Ductile Iron can be used above or below ground. The strength of ductile iron compensates for unforeseen environmental changes. This can be laid in narrow and/or shallow trenches; Can be laid at a wide range of depths with no detrimental effect on the performance of the pipe. The Rapid push-fit joint is simple and robust and provides high flexibility in both application and installation. No specialist equipment required; Capable of angular deflection and axial withdrawal, providing opportunity to reduce the number of fittings required.