The ProJet SL convertible jet pumps offer a proven cast iron self-priming design available in 1/2 model. The ProJet SL convertible jets utilize easier priming and better range of performance from a complete line of shallow well, 4-inch double pipe, 2-inch and 3-inch single pipe jet packages. Close-grained cast iron construction. Reinforced polypropylene diffuser with brass wear ring. One-piece threaded stainless steel shaft. High quality pressure switch with adjustable cut-in pressure settings. CSA certified. Convenient single phase shallow deep well jet self priming pump. Comes with 1/2-horsepower. Available in 115/230-volt. 1-year warranty.