Pentair SF-N1-1A SuperFlo Standard Efficiency Single Speed Inground Pump, 1 HP Extremely quiet operation Unionized fittings (1-1/2-inch internal slip and 2-inch external slip) Cam and ramp lid Heavy-duty, high service factor 56-square flange motor Measures 28-inch length by 14-3/5-inch height by 12-1/2-inch width