Hayward BULKHEAD FITTING

The Hayward Bulkhead Fitting is a critical plumbing component designed to create a secure, watertight passage through the wall of a pool filter tank or heater header. Precision-molded from a high-density, UV-stabilized thermoplastic, this fitting typically consists of a threaded body, a large flanged nut, and a specialized gasket or O-ring set. Its primary mechanical function is to provide a rigid anchor point for external piping connections, such as the intake or return lines, ensuring that the connection can withstand the vibration and hydraulic thrust generated by high-flow pumps without leaking or loosening. By sandwiching the tank wall between the flange and the nut, it creates a high-pressure seal that maintains the hydraulic integrity of the filtration system. The fitting is engineered with smooth internal bore transitions to minimize friction loss and is highly resistant to the chemical degradation caused by salt-chlorine systems and concentrated sanitizers. For shipping and logistical purposes, the estimated weight of the Hayward Bulkhead Fitting is approximately 0.65 pounds in its retail protective packaging, while the actual dry weight of the molded fitting and its hardware is roughly 0.42 pounds.