Release Ultra® Concentrate is a highly effective cleaning product that is the first true Ultra Concentrated solution available of this type. Being Ultra Concentrated reduces shipping costs, but it also greatly reduces storage space and the cost of use. To refill a 32oz spray bottle at the highest concentration is as low as $1.12. Release® is used for cleaning all surfaces of the interior and exterior of aircraft, boats, cars, trucks, and trains without harming them. It has no chemical odor and is fragrance and phosphate-free. Release® will clean the most tenacious soils by associating with the soil and releasing them from the surface.