NIS renews piston pumps to like-new condition according to OEM specifications. Pumps are disassembled, cleaned, inspected, repaired with OEM parts, reassembled, and tested at 1200 psi. Piston pumps are completely rebuilt using new seals, bearings, and other wear components. The renewal process is accurate and reliable and extends equipment life, which creates a cost savings for our customer. The pump is delivered and guaranteed to perform like-new but at a fraction of the cost of new.