Spa Builders, Circuit board LX-15 2-Pump Extended Software Rev 4.0
Use with Topsides with 25' or 50' Cords Only. This Only Replaces Boards with Rev 4.02 Chips. Replacement Fuse: F1 = AI #5-60-0260; F4 = AI #5-60-0308. Replacement Option For: MFG #01710-133 Rev