The GRACO AST421 AIRLESSCO TIP, also known as the 421ST REV-TIP with SEAL, is a reversible airless spray gun tip designed for use with GRACO airless spray equipment. It is constructed for durability and is intended to provide a consistent spray pattern for various coatings. The tip is engineered to be easily cleared of clogs and is suitable for professional painting and coating applications.

Key Features:

• Airless Spray Gun Tip
• AST421 / 421ST REV-TIP, SEAL (exact model may vary; closest available is RAC X LP SwitchTip 421 or XHD421, but not AST421)
• Reversible tip for easy clog clearing
• Designed for quick tip changes without removing tip guard and housing (for SwitchTip models)
• Engineered for consistent spray pattern and finish

Applications:
Professional painting, coating, and finishing applications. Suitable for use with a wide range of coatings, including paints and high-solids materials (for XHD421; for AST421, not specified).

Installation Notes:

• Using genuine GRACO parts ensures optimal performance, safety, and longevity of your spray equipment.
• Ensure the spray gun is depressurized before installing or removing the tip
• Align the tip correctly with the spray gun and tip guard
• Use the reversible feature to clear clogs by rotating the tip 180 degrees
• Regularly inspect the tip for wear and replace as needed