31113 Hydro Flame Heater / Furance Blower Wheel This genuine replacement part ensures reliable and efficient performance, while maintaining the integrity of your Hydro Flame furnace. Precision engineered and compatible with original equipment manufacturer (OEM) specifications, this blower wheel is designed to improve airflow, optimizing your furnace's heating capabilities for a comfortable and cozy traveling experience. Material: Plastic Axle Hole: 5/16" Warning: Product may contain materials warned by California Proposition 65