Marquis Spa Board LZR1U 2003 MRQ600-6283

DISCONTINUED see replacement control systems:

BP100 system, probably with a remote heater. Would need picture of current control box and heater to confirm heater location.
        With 4KW fixed heater located at the bottom of the control box:  50-BP1-200-40-K, 
        With remote heater (can mount on plumbing or back control box): 50-BP1-200-4R-K 

Marquis Spa Circuit Board LZR1U for 2003 Wish, Mirage And Spirit Models with LZR1UR2B Chip. Balboa 52823.

This is a brand new circuit board.

MRQ600-6283