Marchanna,
Power Service comes in 3 forms:
Red bottle is the 911 and is for emergency needs . . It is not intended for normal use and it can be harmful if used all the time because it is designed for a specific problem.
Gray bottle is the color of dry concrete and it's intended for warm weather (above 30 degrees). 1 bottle treats 250 gallons and costs 10 to 12 dollars.
White bottle is the color of snow and it's intended for winter weather (30 degrees and below). 1 bottle treats 250 gallons and runs on sale price is 8.49 to 12.00 dollars.
Both the white and gray versions include lubricate agents as well as cleaning benefits and the white also has the anti-gel functions.