This 30 mfd 370v motor run capacitor is designed for 230V spa and hot tub pump motors. Compatible with A.O.Smith/Regal Beloit, Century/Regal Beloit, Franklin Electric, and General Electric motor brands. Measures 1-3/4" diameter x 2-7/8" height with 1/4" tab electrical connections. When spa pump capacitors fail, symptoms include excessive amp draw, motor overheating, unusual noise, and performance issues. Testing capacitors requires specialized equipment to verify proper charge retention. Important: A failing capacitor often indicates underlying motor problems rather than being the root cause itself. If your pump motor damaged the capacitor, replacement may provide temporary operation (days to weeks) before failing again. Always verify you need this exact capacitor by matching the microfarad rating (30 mfd +/- 10%), voltage (370v), physical dimensions (1-3/4"dia x 2-7/8"h), and numbers stamped on your original component. Capacitor Type: Motor Run. Microfarad Rating: 30 mfd. Voltage: 370v. Length: 2-7/8". Diameter/Width: 1-3/4". Part Dimensions: 1-3/4"dia x 2-7/8"h. Electrical Connection: 1/4" tab. Microfarad Rating Tolerance: +/- 10%.