The GRACO 120389 is a tube fitting designed to connect 3/8 inch outer diameter (OD) tubing to a 1/4 inch NPT (National Pipe Thread) port. It is commonly used in air line systems within GRACO spray equipment and proportioners to ensure secure and leak-free connections between tubing and equipment ports.

Key Features:

• Tube fitting
• 3/8 in. OD tube x 1/4 NPT
• Compatible with GRACO spray guns, proportioners, and other equipment requiring 3/8 in. OD tube to 1/4 NPT connections
• Provides secure connection between tubing and equipment
• Designed for use in air line systems
• Supports reliable and leak-free operation

Applications:
Used in air line connections for GRACO spray guns, proportioners, and similar equipment to ensure proper air supply and system integrity.

Installation Notes:

• Using genuine GRACO fittings ensures compatibility, reliability, and safety within GRACO equipment systems.
• Ensure tubing is cut cleanly and squarely before insertion
• Hand-tighten the fitting, then use a wrench to secure, but avoid over-tightening to prevent damage
• Inspect for leaks after installation and during routine maintenance