Maybe this is what you need .....
https://www.bigalspets.com/eheim-pump-head-cover-for-2215-1215.html
I had a leaker 2011 , fixed it with the appropriate cover . The output elbow is integral with the cover and connects to the pump head .. there's an o-ring completing the seal between the head and the outlet piece on the cover IIRC.
Here's a link to the parts list :
https://www.eheim.com/resources/product//232/downloads/10/EHEIM_classic_350_spare_parts_GB.pdf
or maybe you just need the o-ring ...
https://www.bigalspets.com/fish/plu...g-ring-for-2211-2217-2313-2317-1211-1217.html
https://www.bigalspets.com/eheim-pump-head-cover-for-2215-1215.html
I had a leaker 2011 , fixed it with the appropriate cover . The output elbow is integral with the cover and connects to the pump head .. there's an o-ring completing the seal between the head and the outlet piece on the cover IIRC.
Here's a link to the parts list :
https://www.eheim.com/resources/product//232/downloads/10/EHEIM_classic_350_spare_parts_GB.pdf
or maybe you just need the o-ring ...
https://www.bigalspets.com/fish/plu...g-ring-for-2211-2217-2313-2317-1211-1217.html