Color: Required Blue and 2L water Postal and 1L water Green and 1L water Blue and 1L water Red and 1L water Black and 1L water Orange and 1L water 2L water bag only Postal and 2L water Green and 2L water Orange bag only Red and 2L water Black and 2L water Orange and 2L water 1L water bag only Postal bag only Green bag only Blue bag only Red bag only Black bag only