TORO Power Clear 18 in. Single-Stage Gas Snow Blower 518 ZE Electric IgnitionTORO Power Clear 18 in. Single-Stage Gas Snow Blower 518 ZE Elec Ignition. This Toro Power Clear Single-Stage 18 in. Gas Snow Blower features a 7 in. Auger, a Positive-Locking Zip Deflector and Variable Forward Speeds so you can control the throwing.