

The Graco 180990 Tube, Stanchion is a factory‑fit support guide tube that ensures proper alignment and smooth movement of internal pump elements in Graco airless assemblies.
The Graco 180990 Tube, Stanchion is a factory‑engineered internal guide tube used in select pump assemblies to support moving parts and maintain alignment.
This OEM tube fits into the fluid section of compatible pump models to provide internal guidance and stable support for rods and pistons, helping minimize wear and support smooth operation.
Built to precise factory specifications, it ensures a secure and accurate fit in designed assemblies.