Balboa Genuine AX10A2 Aux Topside [Jet 2] w/o Overlay (G8912) alliedinnovation When a multiport valve begins

When a multiport valve begins to fail

Helps restore smooth rotational support in compatible motors

This part has practical value because a model-specific housing replacement helps preserve the intended fit and function of the original valve assembly

Waterway union tailpiece

Balboa Genuine AX10A2 Aux Topside [Jet 2] w/o Overlay (G8912) alliedinnovation When a multiport valve beginsThe Balboa AX10A2 auxiliary topside is designed for compatible spa control applications where an auxiliary control point is needed for Jet 2 operation. A topside control is useful because it gives the user convenient local access to system functions, supporting easier spa operation and a more flexible control layout. This replacement is especially useful when the original auxiliary topside is damaged, unresponsive, or no longer communicating correctly