Description
This backup washer is a direct-fit replacement for Graco part 15F183, used in GH 300, GMax II 7900, Ultra Max II 1895. It installs in the original position with no modification.
Common reasons this backup washer is replaced:
- Leaking at the seal, gland, or mating face
- Pressure loss during operation
- Hardening, cracking, or flattening with age
- Routine replacement during a pump or gun rebuild
Manufactured to OEM-equivalent dimensions for proper fit and performance. Compatible equipment models are listed in the Compatible Equipment section below, where available.
