Balboa Exp Board 2 Pump Relay (Gs523Dz)

Balboa Exp. Board 2 Pump Relay (GS523DZ): The Balboa Exp. Board 2 Pump Relay (GS523DZ) is a powerful and reliable circuit board suitable for various types of spas and swimming pools. With the ability to control two pumps, this circuit board provides an efficient way to control and maintain the water in your pool or spa.