Every ShapeArray model has 1.5 m of PEX tubing attached at the top. The PEX Extension Kit is used when this length is not enough to reach the surface or end of a borehole. ShapeArray construction uses PEX tubing to protect the communication cable from damage. The PEX tubing is resistant to twist and helps maintain azimuth control for the ShapeArray when the top of the ShapeArray is not visible at the surface. PEX also provides a secure way to retrieve ShapeArray from an installation conduit after project completion. The PEX Extension Kit includes couplers and crimp rings.