

The Graco 188557 Packing O‑Ring ensures leak-free operation in Graco pump and valve assemblies by providing a reliable seal.
The Graco 188557 Packing O‑Ring provides a secure seal to prevent leaks, maintaining consistent performance in Graco pumps and valve assemblies.
| Part Number | 188557 |
|---|---|
| Description | O‑ring for pump and valve sealing |
| Function | Prevents fluid leaks |
| Application | Graco pumps and valves |