Drain Plug with O-Ring Compatible with Mastertemp and Max-E-Therm Pool Heater U178-920P ensures a secure, leak-free connection. This durable replacement part is designed to fit a wide range of Pentair pool heaters, ensuring smooth operation and preventing leaks.

• Perfect Fit: Compatible with Pentair Mastertemp and Max-E-Therm pool heaters, including models like 460736, SR400NA, SR200NA, and more.
• Includes O-Ring: Comes with a durable O-ring to ensure a secure, leak-proof fit.
• Leak Prevention: Replace the drain plug when leaks are detected at the manifold for optimal heater performance.
• Wide Compatibility: Works with models 460730, 460732, 460734, 460736, 460805, 460806, SR200NA, SR333NA, SR400NA, SR400HD, and others in the Mastertemp and Max-E-Therm series.