LX-30 topside panel - for use with LX-30 systems, and also as a RETROFIT for obsolete LX-25 topside panels pictured above used on Palm Springs Spas and Bullfrog Spas, in conjunction with a new circuit board eprom chip listed below. Telephone plug style connections. This 11 button LX-30 topside panel gives significantly different display features, but controls the same functions as the LX-25 topside. Hole size required - 145mm x 75mm, overall size - 235mm x 108mm