1/3 hp submersible sump pump with cast iron housing, polypropylene base, polycarbonate cover, and thermal overload protection. “CIA” models have integral diaphragm switch with “on” level at 7" to 10" and “off” level at 1" to 4". The 6-CIA-RS has a piggyback diaphragm switch with same “on/off” ranges. “RFS” models have piggyback remote float switches. 1-1/2" FNPT discharge with 1-1/4" FNPT adapter. Manual versions include a garden hose adapter.