Mop(dishwashing liquid)is concentrated. A little mop goes a long way. Just one capful mixed with a bucket of water washes stacks of crockery. Don (household cleaner) just a little don concentrate in half a bucket of water fights grease and dirt to the last speck and leaves your floor, bathrooms, tiles, sanitary ware, glass surfaces, upholstery and even motorcars gleaming bright. 5 liter plastic cans.