Balboa Water Group VL406U (Duplex Digital) Spaside ControlThis topside control is made for use on Balboa VS100, VS300, VS500Z, VS515Z, and GS500Z systems. It has a 7ft cord with an 8 wire phone jack...
The following circuit board(s) are compatible with the above topside: 59-138-1037, 59-138-1046, 59-138-1680, 59-138-1683Overlay part number 58-138-1255