Condenser Coils are made for heat rejection, such as the heat absorbed by an evaporator coil, and they typically operate under higher internal pressures. Coils made with 3/8-inch tubing are rated for use at 600 PSIG and 300F while coils made from 1/2- or 5/8-inch tubing are rated for 300 PSIG and 300F. Condenser coil fins may be normal aluminum foil, also pre-coated aluminum foil or copper foil. Better-tech can supply Black Epoxy Resin Anticorrosive or Blue Hydrophilic pre-coated aluminum fins to meet condensers to be applied in different conditions.