The Preval Sprayer System is an easy-to-use aerosol spray system using for spraying water, paints, chemicals and more with precision and ease. No additional compressed air source is necessary; just screw the disposable spray cartridge onto the jar of your liquid and start spraying. The compressed air cartridge creates a fine mist of spray, allowing for quick and even coverage of your surface. Perfect for use in the Batiky technique for water misting!