Whitfield Stove Blower 1/35hp, 3000 RPM, 115 Volt Rotom Replacement # HB-RBM121
Cross Reference: 7021-7786, 702111470, 7021-11470. Outside Flange Dimension = 4 3/8" x 4"; Bolt Hole-center to center = 3 3/4" x 3 3/8"