Replacing Pentair Spa Light with Pureline PL5817 Compatibility

I want to replace my Spa light - will the Pureline PL5817 (or the v2 which replaces it) fit into my Existing Pentair fitting?

The label on the base reads No. V-734415 Label #619540 E41117

The bulb is 120v 100W

I also need to know which seal I need

Thanks

Hello Scooby7 - Thank you for contacting Inyo. Either the PL5817 or the PL5867 (V2) will replace your bulb and fit in the fixture. The gasket would be part number 57-110-1234.