【Replacement Part Numbers】3721621-1D, 372161-0D87, 372161-0D36, 3721621-0D, 372161-0D76, 3721621-1D5A, 3721621-0D85CT, 3721621-0D76VK, 3721621-0D85, ME-40226-20, PF-30-2N22M, PF-40-2N22C, PF-40-2N22M, PF-40-2N22MC, RB817, B235, TT505, 5KCP49UN9314X, 7-187563-02 【Product parameters】Voltage: 220-240V, Speed: 2-speed: 3450 RPM high/1725 RPM low, Horsepower: 4HP, Amperage: 12A high/4.4A low, Gallons Per Minute: 240 GPM (high speed), Frame Size: 56 Frame, Intake: 2’’ plumbing (3’’ O.D. pump threads), Discharge: 2’’ plumbing (3’’ O.D. pump threads), Discharge Type: Side, Wet End Discharge Orientation: Top (can easily be rotated). 【Running quietly】Dualdouble-shielded ball bearings with moisture-resistant grease minimize friction and noise,Providing a quiet working environment, it is the perfect choice for hot tubs and indoor water pumps. 【Powerful Function】This spa pump is powerful and suitable for various application scenarios, providing excellent water circulation, filtration, and jetting performance for spa centers and swimming pools. 【Precise design】This advanced spa pump has a lower operating temperature, which delivers added strength and a longer motor life; This spa pump with a large 2" intake for better water flow, a split capacitor for minimum energy consumption, and a durable viton seal for quiet and effective operation. Plastics 3721621-1D Executive 56 Frame 4 Horsepower Spa Pump, 230-Volts