Power-flo Pumps series PF4NC, 4" flanged horizontal discharge submersible non-clog sewage pump designed for typical raw sewage applications; 3" spherical solids with double mechanical seals; 4.5 HP, 7.5 HP 11.3 HP and 15HP, 1750RPM, 60Hz. Include normally open (N/O) moisture sensor contact and normally closed (N/C) temperature sensor contact.