The RCI Custom Products VC Series 70 Volt volume controls are for use with the VCBF Series pre-punched rack panels. An attractive knob (not supplied) completes the package. Order knob separately, Model ROGPT6-P-S-BLK.All units fit on pre-punched rack panels or in a standard depth E.O. box. Pre-wiring is easy using the phoenix-style plug-in screw terminal strip. Plugs are labeled for wiring accuracy. Conductor capacity is up to 14 gauge.