The 3M™ Accuspray™ Atomizing Head Refill Kit contains replaceable heads for the application of very low- to high-viscosity coatings with the 3M Accuspray ONE Spray Gun (sold separately). With the fast, simple change of a head, it will help improve your existing spray gun’s performance. The see-through design makes it easy to see if the heads are dirty and if so, the heads may be cleaned and reused. These heads accommodate the spraying of primer, sealer, base and clear coat from ONE gun. Works with 3M Accuspray ONE and PPS™ Systems (sold separately). The 1.4 mm heads are orange to distinguish their size from others and deliver fine atomization with minimal overspray, making it ideal for lower-viscosity materials such as automotive sealer, paint, topcoats, lacquers, and light adhesives.