When installing, please consult qualified professional and local pool guide line. These pump are never installed but it does have some minor scratch and dents. The pump are 2 speed with 1.5 npt threads. High Efficiency Impeller maximize flow and reduce noise while the energy efficient motor with commercial-grade frame; Internal Inlet Fitting: 1.5″ NPT (fit for 1.5″ male threaded adapter). Powerful Pool Pump heavy-duty, high-performance motor with air-flow ventilation for quieter, cooler operation. Easy start up fill pump with water upon first use to prevent motor from overheating. Thermally protected motor for greater protection and longevity. Swimming Pool Pump heavy-duty, high-performance motor with air-flow ventilation for quieter, cooler operation. Extra-large debris basket keeps pool maintenance to a minimum, letting you enjoy your pool more, while the clear cover lets you see exactly when the basket needs cleaning. Compatible with DE, sand, and cartridge filter. This Swimming Pool Pump has a/Certification to ensure recognized Standards for Safety. Intended for use with swimming pools, hot tubs, and spas. Material: PPGF30 + PC. Internal Inlet Fitting: 1.5 NPT.