We are now set up with Pay Pal. We are selling CoilNukes Cleaning Solution for $14.00 per one liquid ounce. This includes postage anywhere in the USA and handling. You will receive a glass test tube containing one ounce of CoilNukes concentrate solution. Pour CN into a sealed container and add distilled water. CN will clean and restore your used cotton coil filter using a 30/1 mix ratio. You can use a container that holds between 20 to 32 ounces. Keep the container sealed so CN won’t evaporate but if it does, just add more water.