Dolphin Amp Master 4000/3000 Pump with Heavy Duty Carbon/Ceramic Marine Seal. 1/15 HP, 115-Volt, Avg. Amps 1.21. Pump comes with 2-inch unions for inlet and outlet and reducer bushings are included for conversion to 1-1/2 plumbing. Pumps 4000 GPH at 2-feet of head when plumbed with 2-inch pipe or pumps 3000 GPH at 2-feet of head when plumbed with 1-1/2-inch pipe. Comes with one year warranty and an extended nine year factory service guarantee.