Push in returns?

daum

Well-known member
Aug 30, 2022
56
Massachusetts
Last year while closing I noticed air coming around the plugged returns then found they could be just pulled out fully. I hadn't had to do that in previous years. I was curious did some glue just finally wear out? What are these called? 1000005890.jpg
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They basically just were pushed into the returns and came out without too much trouble. The eye threading can unthread from them too.

Thanks!
Daum
 
Sounds good does it matter how they go back in? Are the notches supposed to align? Pools still covered but thought of this today
Dunno. Never saw it in real life.

Whatever seems to hold it best.