Response to Hello William.  Both the Lens Gaskets 9250-03 and 9250-03A are compatible replacement lens gaskets for the light fixture in the photo provided. The Lens Gasket 9250-03 is an aftermarket lens gasket.  The Lens Gasket 9250-03A is a Pentair OEM lens gasket.   Lens Gasket for Pentair SpaBrite, AquaLight & Sal Light (79108500) O-344    Silicone Gasket For Aqua-light (79108600)

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