The 8STL self-priming pump is a premium efficiency wet prime pump developed to meet unique market needs. While the 8STL has all of the great features you get from our STX and STH Series pumps, such as Cycloseal®, heavy-duty ductile iron castings, oversized steel shafts, double-lip seals for bearing protection, it is also uniquely designed to run at 1800 RPM. The higher speed capacity allows the pump to be used on engines applications without the need for speed reducing gear boxes. Its performance exceeds the competition while providing the flexibility of both frame and SAE mount options.