This Cal Spa heater union gasket features Mo-Flo compatibility with a 2" inner diameter and 2-3/4" outer diameter configuration. Designed specifically with a 2-5/8" center-to-center small lip profile for precise fitting.
The lip measures approximately 2-5/8" from center to center and is notably thin and narrow in design. This slim profile is critical for proper sealing - standard thick-lip gaskets measuring 2-5/8" will not provide an adequate seal in applications requiring this particular thin-lip design.
Ideal replacement gasket for Cal Spa Mo-Flo heater unions requiring the small lip specification. Verify your existing gasket has a thin, narrow lip before ordering to ensure compatibility with your spa heating system.
