The Culligan  OR-38 O-Ring fits the following whole house water filters with a 3/8-inch inlet/outlet: Culligan  models US-550/560, SY-5167, SY-5197. The o-ring is used to seal the housing canister to the housing cap to prevent leaks.  Replace your O-ring every third filter change or when there is damage to prevent leaks.
	- Culligan  OR-38 replacement o-ring for filter assemblies with 3/8-inch inlet/outlet housings.
 
	- O-ring is used to seal the housing canister to cap to prevent leaks in filter system.
 
	- Replace your o-ring with every third filter change to prevent leaks.
 
	- Use with Culligan  US-550/560, SY-5167 or SY-5197
 
	- Package includes:  OR-38