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Alphacool 3070 block - Replacement o-ring size?


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Let's just say I was polishing up the acrylic and didn't notice when I apparently popped an o-ring off and proceeded to wash it down the drain (I already took the drain pipe apart to see if it was there and it was not). 

 

Don't suppose anyone might know what size o-ring this is around that screw area?

 

 

1020971_01.jpg

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I know this isn't what you asked for, but if you take one of the other existing ones of the same size to a plumbing supply or HVAC supply store they can likely match it up for you I think.  I might let them know upfront that it is likely metric.  For that matter, I think even Harbor Freight may sell "metric o-ring assortments" pretty cheap.  I do understand though if you are reluctant to use an o-ring somebody only "thinks" is the right size.

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14 minutes ago, ArchStanton said:

I know this isn't what you asked for, but if you take one of the other existing ones of the same size to a plumbing supply or HVAC supply store they can likely match it up for you I think.  I might let them know upfront that it is likely metric.  For that matter, I think even Harbor Freight may sell "metric o-ring assortments" pretty cheap.  I do understand though if you are reluctant to use an o-ring somebody only "thinks" is the right size.

No, this is actually a great idea. I didn't even think about Harbor Freight. I have the other o-ring which is the same size still there, so that would be perfect.

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1 hour ago, Sir Beregond said:

Let's just say I was polishing up the acrylic and didn't notice when I apparently popped an o-ring off and proceeded to wash it down the drain (I already took the drain pipe apart to see if it was there and it was not). 

 

Don't suppose anyone might know what size o-ring this is around that screw area?

 

 

1020971_01.jpg

 

...I don't know that specific block, but if you have a spare compression fitting (ie. 1/2 id), they have an o-ring on the thread side which has worked for me before as a replacement for another purpose. 

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9 hours ago, J7SC_Orion said:

 

...I don't know that specific block, but if you have a spare compression fitting (ie. 1/2 id), they have an o-ring on the thread side which has worked for me before as a replacement for another purpose. 

A bit too big, unfortunately. Not by much, but just enough it didn't sit right in the groove for it. These appear to be an OD of 9 or 10mm. I am not sure on the ID.

 

I decided to just put in an order for a metric set of o-rings and see if I can find one that works. Less than $10, so not a huge deal if it doesn't work out.

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Just an update. Got the o-ring kit in. Looks to be a 7x2mm o-ring. Maybe that helps someone in the future..

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