Provides a source of oxygen-rich water to your live well automatically. This unit features a solid-state timer with adjustable off times to adjust to varying conditions. Easily adaptable to existing systems. Simply connect wiring according to instructions provided. Front panel is 3-1/4" x 3-1/4" and requires only 3" behind panel. This is the only timer on the market that will handle a high capacity pump's current draw. 10 amps.