

Plastic seat diffuser for Graco PerformAA spray guns, designed to regulate fluid flow and maintain consistent atomization in standard industrial coating applications.
| System | Compatible Models | Application |
|---|---|---|
| Graco PerformAA Spray Gun Series | 26B500, 26B501, 26B509, 26B510, 26B511, 26B512, 26B513, 26B514, 26B515, 26B516, 26B519, 26B520 | Air-assisted automatic and manual industrial finishing systems |
| PerformAA Fluid Cartridge Assemblies | Standard PerformAA configurations using plastic seat diffuser setups | General-purpose coating applications requiring stable atomization and controlled fluid flow |
The Graco 26B708 KIT, DIFFUSER, PLASTIC SEAT is a precision internal component designed for the Graco PerformAA spray gun system. It regulates fluid distribution and helps form a consistent spray pattern by controlling how material passes through the gun’s internal diffusion chamber.
Featuring a plastic seat design, this diffuser kit provides reliable performance in general-purpose coating applications where high wear resistance is not the primary requirement but stable, cost-effective operation is essential.
It is commonly used as a replacement part to restore spray quality, improve atomization consistency, and maintain proper fluid flow within the cartridge assembly.