Every air conditioning unit includes two coils that bring in cool air, and blow out warm air: The evaporator coil, often called the “indoor coil” and the condenser coil, often called the “outdoor coil.” In modern air conditioning units, there coils are usually made of tubular copper or thin aluminum fins. Keeping these coils well maintained, and bush with oil groove for sale free of dust and contamination, can extend the life of your air conditioner,… Continue