Fits All 1/2" and 3/4" Sherwood Strainers
Replacement o-ring for Sherwood 1/2 in. & 3/4 in. NPT marine raw water strainers
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Sherwood 1/2 in and 3/2 in. water strainer o-ring
- Used on Sherwood 15935, 18004, and 18001 strainers
- Seals between strainer head and strainer bowl
Don't lose this in the water!
A lost O-ring can cause your engine to overheat!
This has been changed by the manufacturer and no longer has the 4 flat sides