Spray refill for the Portable Professional Preval Sprayer. Diptube included. Uses just 1.94oz. of eco-friendly propellant to spray up to 16oz. of liquid. Can be used with different formulas for different projects. Ideal for in the field touch-ups, every Preval Power Unit secures to a recyclable glass bottle and atomizes virtually any color-matched paint, formula or solution with consistent results.