A-67736C1Trans Disc: 14", 8-button, Spring loaded, Heavy Duty
A-A57425Trans Disc: 15", 6-button, spring loaded
A-1997843C1Trans Disc: 4-button, solid (Rockford design)
A-1997844C1Trans Disc: 4-button, spring loaded (Rockford design)
A-MSR556Trans Disc: 9.25", organic, solid
A-G11079Trans Disc: 9.25", 5-button, spring loaded