Hayward AIR RELIEF ASSY WITH O-RING

The Hayward Air Relief Assembly with O-Ring is a critical safety and maintenance component designed to allow for the manual purging of trapped air from the top of the filter tank. Constructed from a high-impact, UV-resistant reinforced polymer, this assembly features a threaded valve body and an integrated pressure gauge port that allows pool operators to monitor internal system stress. Its primary mechanical function is to vent air that accumulates during pump startup or after servicing, ensuring the tank remains fully flooded with water to prevent dangerous pressure spikes and ensure optimal filtration efficiency. The included high-quality synthetic rubber O-ring provides a secondary airtight seal at the base of the assembly, preventing pressurized water from leaking out while the system is under load. This assembly is engineered to withstand the corrosive effects of salt-water systems and chlorinated environments, making it a durable fixture on the filter head. For shipping and logistical purposes, the estimated weight of the Hayward Air Relief Assembly with O-Ring is approximately 0.6 pounds in its retail protective packaging, while the actual dry weight of the valve and gasket components is roughly 0.4 pounds.