1.Made employing superior quality, highly durable and flexible silicone material, measuring 4.28” outside diameter, 3.48” inside diameter, and 0.63” thickness. 2.Used with the following Pentair Lights: Intellibrite 5G Color LED Spa, Intellibrite Color LED Spa, Intellibrite White LED Spa and Aqualight. 3. Fits Pentair SpaBrite, Intellibrite, AquaLight and SAL Spectrum pool and spa lights 4. 79108600 pool light bulb gasket replacement is an quality part designed to ensure full compatibility with Pentair SpaBrite, Intellibrite, AquaLight and SAL Spectrum pool and spa lights, being suitable for use with the following Pentair Lights: Intellibrite 5G Color LED Spa, Intellibrite Color LED Spa, Intellibrite White LED Spa and Aqualight. 5.These are .