Balboa VS510Z Expansion Board 53544
The Balboa expansion circuit board part# 53544 for the Balboa VS510SZ controller and some EL2001 M3 Systems by Balboa.
The add-on expansion board is designed to run a second single-speed pump. Also referred to as the mini pump 2 board, this Balboa expander board measures 3-1/8" x 1-5/8" and functions as a single relay pump 2 extension circuit board.
The pump 2 expander board is located and mounted on top of the heater on M3 systems and the Balboa VS510SZ with two pumps controls.
This Item is Special order only and is not returnable except for warranty- Delivery time will be 4-6 weeks
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