Electrolux Roller Brush For Serpentine Belt For Canister Models EL7020B, EL7024A, EL7055BZ, EL7060A. Electrolux Canister Power Head Roller Brush. Requires Poly V- Serpentine Belt Number 77133 Fits Models EL7020B, EL7024A, EL7055BZ, EL7060A. Electrolux Original manufacturer's Part