Balboa Water Group Expander Board Kit, 2-Speed | 55137 Luna combining handcrafted quality with modern

combining handcrafted quality with modern functionality

Product Features: Stackable

Combining elegance with enduring comfort

High-Density Polyethylene (HDPE) Wicker: All-weather

Balboa Water Group Expander Board Kit, 2-Speed | 55137 Luna combining handcrafted quality with modernBalboa Water Group Expander Board Kit 2 Speed 55137 Enhance Your Spas Circulation with Reliable Two Speed Pump Control Introduction Optimize your spa system with the Balboa Water Group Expander Board Kit 2 Speed 55137, designed to seamlessly add a two speed pump output for improved water circulation. Built with 30A fuse protection, this durable expander board is compatible with VS520SZ, VS520DZ, BP7, BP501, and various other Balboa control systems.