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crwdns2933797:0Nicolas Siemsencrwdnd2933797:0crwdne2933797:0

crwdns2936043:0crwdne2936043:0 crwdns2933505:0crwdne2933505:0 Nicolas Siemsen

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+[* black] Inspect the bolt. On the newer style, as pictured, there are two different sizes of o-rings to seal the bolt. One the earlier style, there is only one o-ring.
+[* red] On this bolt, the o-rings are old, brittle, and flattened. They need to be replaced, there are o-rings in most metric o-ring kits that will fit.
+[* black] On the early style housing there is also a copper crush washer that goes under the head of the bolt, in place of the second o-ring. This should be replaced with every filter change.
+[* green] See the new o-rings installed here.

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