This Power Save home energy saving kit includes one Power Save 1200 Power Factor correction device, one solar attic fan, 5rolls of radiant barrier, and 5rolls of duct seal. This kit is suitable for single homes up to 2500 sq. ft. or two story homes up to 3000 sq.ft. in size, can help save energy up to 35% and lower energy bill. Price includes shipping and Handling for destinations within USA. For homes larger in size, one can purchase additional rolls of Radiant Barriers and Duct Seal Tapes.