The 4 inch spray pattern is ideal for narrow surfaces such as trim, fences and decks The .009 inch hole size optimal for spraying thinner materials like semi transparent stains, water sealers, stains or polyurethanes Graco-exclusive SoftSpray Technology provides better control to easily blend each spray pass for a superior finish Reversible feature quickly clears spray tip clogs by simply twisting the spray tip and spraying in the reverse position Intuitive design provides quick identification of spray direction