Reversible Airless Spray Tip for High-Flow, Wide-Pattern Coating Applications
Compatible Machines
- Graco Ultra Airless Paint Sprayers
- Graco UltraMax Airless Paint Sprayers
- Graco Magnum Airless Paint Sprayers equipped with compatible ZIP tip guards
- Graco Contractor Series Airless Sprayers
- Graco Mark Series Airless Sprayers
- Graco GH Series Hydraulic Airless Sprayers
- Graco LineLazer Striping Systems with compatible spray gun assemblies
- Other Graco airless sprayers compatible with ZIP reversible spray tips
The Graco 55421 Asm Tip, Zip, 421 is a professional ZIP reversible airless spray tip assembly designed to deliver consistent material flow for medium to heavy coating applications. Featuring a 0.021-inch orifice and an approximate 8-inch spray fan, the 421 tip provides efficient coverage while maintaining a controlled spray pattern. Its reversible design allows clogs to be cleared quickly, minimizing downtime and improving jobsite productivity.
Key Features
- Professional ZIP reversible tip for fast clog removal.
- 0.021-inch orifice supports increased material flow for heavier coatings.
- Approximately 8-inch spray fan offers efficient coverage with excellent control.
- Produces uniform atomization for smooth, consistent finishes.
- Heavy-duty construction designed for long-lasting professional use.
Recommended Applications
The 421 spray tip is ideal for applying interior and exterior latex paints, high-build primers, acrylic coatings, block fillers, elastomeric coatings (where supported by the sprayer), and other medium to heavy materials. It performs well on walls, ceilings, masonry, siding, warehouses, commercial buildings, and other large surfaces requiring dependable coverage.
Technical Specifications
| Part Number | 55421 |
| Product Type | Reversible Airless Spray Tip Assembly |
| Series | ZIP |
| Tip Size | 421 |
| Orifice Size | 0.021 inch |
| Approximate Fan Width | 8 inches (at the recommended spraying distance) |
| Recommended Coatings | Latex paints, acrylic coatings, primers, block fillers, elastomeric coatings, and other medium to heavy materials |
| Maintenance | Reverse the spray tip to quickly clear clogs without removing it from the spray gun |
Frequently Asked Questions
The first digit indicates an approximate 8-inch spray fan, while the last two digits represent a 0.021-inch orifice designed to handle higher material flow for heavier coatings.
It is recommended for medium to heavy coatings including latex paints, primers, acrylic coatings, block fillers, and compatible elastomeric materials.
When a clog occurs, rotate the tip to the reverse position, spray briefly to clear the blockage, then rotate it back to continue spraying without stopping to disassemble the gun.
The 421 tip is ideal for walls, ceilings, siding, masonry, warehouses, commercial buildings, and other large painting projects requiring an 8-inch spray pattern with higher coating output.
