Balboa 52518 Retro Kit: Serial Standard DIG & Serial DLX DIG

This Balboa spa circuit board part number 52518 uses phone style plug connector and is a retro fit for many of manufacturers OEM boards and is identical to 54000 and 54001 circuit boards. Board will handle all basic functions unless your spa has high end features such as misters and fiber optics.

Board will work with the following topside controls (among others):

51057

51058

51216 (auxiliary top side)

51247

51452

53189

53811

54108

54128

54155

54156

54170