Expansion Board for VS/EL, Balboa

SKU: G1900

Expansion Board for VS510SZ and EL2001M3.

Expansion Board commonly used on the VS510SZ and EL2001M3 Balboa Control Systems.

Cross Reference Numbers: 53544, X300026, 53544, 33-53544-K and others.

For Secondary Pump 1-speed Circuit (120V/240V).