Count the number of reachable coil sides per system that will be coated and multiply by the number of quarts needed per side, this is the estimated amount of Cool Worx required for the system.     

For multiple systems for the project, repeat this calculation if there are system variances and add the total amount of Cool Worx (quarts) needed for project.    If multiple systems are identical, simply multiple the amount of Cool Worx needed for one system by the number of identical systems.

Four quarts equals one gallon.