Advance R-2S40-TP Ballast 2 Lamp F40T12 120V Rapid Start NOS

Advance Ballast R-2S40-TP Mark III 120V 60Hz 2F40 T10, T12 Rapid Start

Advance MARK III Rapid Start Ballast R-2S40-1-TP Energy Saver 120V

1 Advance Rapid Start Ballast R-2S40-TP Mark III 120V 60Hz

Mark lll Energy Saver R-2S40-1-TP Advance Magnetic Rapid Start Ballast 40W T12 2

Advance R-2S40-TP Rapid Start Ballast, 120V, 60Hz Used

Advance RELB-2S40-N Ballast 120V 2 Lamp T12 Rapid Start

Advance V-2S40-1-TP 277V Fluorescent Ballast Mark III Rapid Start NOS