This Avantco 17814693 grille serves as a direct replacement for the one that came standard on CFD-1 and A-19 series units. This grille protects the vital refrigeration components of your equipment, like the condenser coil, from damage that could warrant premature failure and replacement. It also helps to block dust and debris from fouling the system so if you find that your grille has become damaged be sure to replace it promptly.