Hayward GAUGE ADAPTER O-RING

The Hayward Gauge Adapter O-Ring is a precision-engineered elastomeric seal designed to provide a watertight and airtight interface between the pressure gauge adapter and the filter head or air relief body. Manufactured from a high-grade, chemical-resistant synthetic rubber like Buna-N or EPDM, this small circular gasket is built to maintain its elasticity while subjected to constant hydraulic pressure and fluctuating water temperatures. Its primary mechanical function is to prevent pressurized water from leaking out of the filter vessel at the gauge mounting point, ensuring that the system remains fully primed and that the pressure gauge can provide accurate readings of the internal filtration environment. By creating a compressed seal within the adapter's threading or seating groove, it also protects the plastic housing from the stress of over-tightening. This O-ring is formulated to resist the degrading effects of salt-chlorine systems and standard sanitizers, preventing the brittleness and cracking that can lead to hazardous pressure loss. For shipping and logistical purposes, the estimated weight of the Hayward Gauge Adapter O-Ring is approximately 0.02 pounds in its retail protective packaging, while the actual dry weight of the individual rubber seal is roughly 0.01 pounds.