Wood Cleaner & Wood Stripper for Wood Decks, Wood Fences, Wood Siding, and Log Cabins - EFC38 & HD80 & Citralic Restoration Sample Kit - Woodrich Brand - Great for testing our cleaners - Easy to use! Woodrich Brand trusted by professional contractors and discerning DIY's for over 15 years Each sample kit contains 1 sample of EFC-38, 1 sample of HD-80 & 1 sample of Citralic There is enough product in each sample to make 1 cup of solution for testing Each sample can treat roughly 9 square feet of wood Specially blended to protect the woods natural sugars and oils