The GS2200, later renamed GP350, grout/injection machine offers the same pumping and injection features as the GP300 grout machine in a smaller , very mobile package.  The machine was designed for the injection of remediation materials or for bottom-up grouting through small diameter probe holes.  After switching to a different system to suit our specific needs better we decided it was time to sell the equipment.  It has been used with care and has served us well but would make a great addition to any fleet.