6600-053 Sundance Spas Circuit Board 1993-1997 600, 650 Series. Replaces 6600-033.
Models:
1993 400 Series: Montego
1993 600 Series: Cameo, Marin, Maxxus, Royale.
1994 400 Series: Montego.
1994 600 Series: Cameo, Maxxus, Royale
1995 400 Series: Montego
1995 650 Series: Calypso II
1996 400 Series: Montego
1996 650 Series: Calypso II
1997 650 Series: Montego, Calypso II