Classic 100-HOB came with an extra black o ring?

Oct 06, 2016
Jacob wrote
I bought and setup a classic 100-HOB about a week ago. It has been working perfectly ever since.

Inside the box were 2 black o rings. After inspecting the parts and looking at the explosion chart, I gathered that 1 of these black o rings goes between the water inlet pipe (part k) and the union (part n) that attaches to the pump.

All of the other o rings listed on the explosion chart seem to be preinstalled. This leaves me with 1 extra black o ring.

Is this one meant to be an extra replacement o ring or am I missing something?
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3 Answers
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Oct 06, 2016
Carlos agent wrote
Are they both the same size?
Oct 06, 2016
Jacob wrote
Yes
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Oct 06, 2016
Jeremy Rykiel agent wrote
There usually is not any extra orings but it would not be the first time a extra came with your skimmer.