Graco Check Flap Valve (18C889)
Replacement Check Flap Valve for Graco PowerFill 3.5 Standard, Pro, and XL Pro series sprayers. All models use two check flap valves, if you need both, order two.
Full Pump Seal Kit P/N: 18F103
Fits these models and others:
- PowerFill 3.5 Standard
- PowerFill 3.5 Pro
- PowerFill 3.5 XL Pro