The Pentair Purex 73739 bolt is designed for compatible Minimax, Minimax Plus, and PowerMax applications and measures 3/8 inch-16 by 2 inches. A bolt like this is useful because it helps secure related equipment components with the correct thread and length, supporting proper fit during repair and reassembly.Replacement is often appropriate when the original bolt is damaged, corroded, or missing after service. Installing the proper Pentair/Purex hardware can help restore the assembly and reduce the risk of issues caused by mismatched fasteners.This OEM bolt is a practical maintenance item for compatible heater systems that need the right replacement hardware for dependable service results. OEM Pentair/Purex bolt 3/8 inch-16 x 2 inch size Fits compatible Minimax, Minimax Plus, and PowerMax applications Useful when the original bolt is worn or missing Supports cleaner and more dependable equipment assembly