SimpleAir HVAC Fin Comb for Straightening HVAC Condensers and Evaporator Fins REPAIRS HVAC CONDENSER AND EVAPORATOR FINS: Specially designed for straightening HVAC condenser and evaporator fins. Bent fins restrict proper and necessary air flow for an HVAC system. IMPROVES HVAC SYSTEM EFFICIENCY: Ideal tool for removing debris that will accumulate over time in outdoor HVAC condenser fins. UNIVERSAL FOR ALL UNITS: The tension bar easily sides to adjust to all fin widths. COMFORT GRIP: Heavy duty ergonomic handle also comes with comfort grip for easier use.