Delrin DIN Cap Recommendation?

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Thank you all.

To sum up as I understand it, all the Delrin DIN regulator caps that folks have used will seal the inlet well enough to rinse the 1st stage.

Some, without an o-ring, do it with a depression that allows for the inlet flange, and lets the DIN fitting's o-ring to seal against the bottom of the cap.

The other type of cap has an o-ring that looks like it seals against the inlet flange.

That's the info I needed.

--Marek
 
https://www.shearwater.com/products/peregrine/

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