How much does this cost to the nearest dollar?

Daley Mint Towel + 2 Best Air Humidifier Water Treatment, 32oz | Powerful Bacteriostatic Formula to Eliminate Odor & Buildup | Increases Life of Home Humidifier and Wick
2 PACK - Receive 2, Best Air Humidifier Liquid Treatments, 32oz POWER FORMULA - Best Air aids in the control of growth build up in and around humidifiers; Helps eliminate smells and odors EFFECTIVE - Improves effectiveness and prolongs the life of humidifiers and wicks; Provides maximum humidity into the air HOW TO USE - For use in all evaporative type humidifiers; Add up to 2 teaspoons (2 cap fulls) per gallon of water each time the humidifier is filled CLEANING TOWEL - Receive 

Price is $20.00

Price: $19.99