Performance Contracting Inc (PCI) offers the following solutions; GSI-191 Testing, Sure-Trap™ Strainer Pre-Screen System, and Sure-Flow® Strainers. Our line-up of GSI-191 compliance solution products can help you achieve your Fiber Bypass goals while staying within your NPSH requirements. These products can be used stand-alone or can be combined to realize additional benefit. In addition to our GSI-191 line-up, we will soon be offering a new generation of BWR Sure-Flow® Strainers.