They look like ferrules for a compression pipe connection to me ---------- Original Message ---------- From: David Knecht via CnC-List <cnc-list@cnc-list.com> To: CnC CnC discussion list <CnC-List@cnc-list.com> Cc: davidaknecht@gmail.com Subject: Stus-List What are these Date: Sat, 9 Mar 2024 15:20:32 -0500 I was sorting through my miscellaneous box from the boat and came across these. Any idea what they are? Dave