Graco 188558 U-Cup Seal

Graco 188558 Seal U‑Cup – High-Performance Spray Gun Sealing Component

Compatible Machines

• Graco airless spray guns
• Professional Graco spraying systems
• Industrial Graco fluid control units

The Graco 188558 Seal U‑Cup provides reliable internal sealing, preventing leaks and maintaining optimal spray performance in Graco spray gun assemblies.

Key Features

• OEM U‑cup design
• Prevents internal leaks
• Durable elastomer material
• Maintains consistent spray performance

Installation & Usage Tips

• Clean surfaces before installing the U‑cup.
• Ensure proper seating and orientation.
• Inspect regularly and replace when worn.
• Check spray output after installation.

Frequently Asked Questions