The Riccar D470-1100D Baseplate Assembly is a factory replacement for Riccar Tandem Air upright vacuums and compatible Simplicity models. It includes a 6-position height adjustment mechanism, allowing the brushroll to be set correctly for carpet thickness.

Replace when the base plate is cracked or the height-adjust function no longer locks. Part number D470-1100D. Fits Riccar Tandem Air uprights and Simplicity equivalents.