Product Name: Airless Paint Spray Gun Tip Model NO.: Airless Spray Gun Brand: Novia Tools Usage: Paint Spray Gun Type: Airless Spray Gun Trademark: NOVIA TOOLS or Neutral or OEM Product Description Product DescriptionCompatiable with Graco style or similar airless guns.Reverse-A-Clean (RAC) SwitchTips mean when you finish your spray gun work,you can reverse the direction of the tip from the spray position and clean the tips by spraying water or cleaning. agent.Notice:spray tips will wear with normal use. It's important to replace a tip when it gets worn to ensure a precise spray pattern, maximum productivity and quality finish. When a tip wears, the orifice size increases and the fan width decreases. This causes more paint to hit a smaller area, which wastes paint and slows productivity. Tip life varies by coating, so if a tip is worn, replace it. Extend tip life by spraying at the lowest pressure that breaks up the coating into a complete spray pattern (atomize). Do not increase the pump pressure; it only wastes paint and causes unnecessary pump component wear. Recommended Spray.Tip Replacement Time:Latex - Replace after 15-40 gallons.Oils & Stains - Replace after 35-60 gallons.Size available from stock:311,313,415,417,517,519,521,617