Dear Larry, I believe that is a safety switch that cuts off the compressor if the system pressure is too high (above 400 psi) or too low (less than 28 psi). Many driers have an M10 x 1.25 threaded fitting for the above mentioned safety switch. Warmest regards, Chuck Engles -----Original Message----- From: Larry Stock [mailto:larrys@panteraparts.com] Sent: Friday, May 30, 2025 5:07 PM To: Larry Finch; detomaso@server.detomasolist.com Subject: [DeTomaso] Re: Techno Question: AC system dryer insulation What kind of drier is that with an electrical plug in it? On 5/30/25, 2:28 PM, "Larry Finch via DeTomaso" <detomaso@server.detomasolist.com <mailto:detomaso@server.detomasolist.com>> wrote: Or you can just avoid the concern of engine bay heat while cleaning up the engine bay appearance by locating the drier in this manner inside the RR wheel well. Larry Sent from me using a magic, handheld electronic gizmo. _______________________________________________ Detomaso Email List is not managed by POCA Posted emails must not exceed 1.5 Megabytes DeTomaso mailing list -- detomaso@server.detomasolist.com <mailto:detomaso@server.detomasolist.com> To unsubscribe send an email to detomaso-leave@server.detomasolist.com <mailto:detomaso-leave@server.detomasolist.com> To manage your subscription (change email address, unsubscribe, etc.) use the links above. Members who post to this list grant license to the list to forward any message posted here to all past, current, or future members of the list. They also grant the list owner permission to maintain an archive or approve the archiving of list messages. _______________________________________________ Detomaso Email List is not managed by POCA Posted emails must not exceed 1.5 Megabytes DeTomaso mailing list -- detomaso@server.detomasolist.com To unsubscribe send an email to detomaso-leave@server.detomasolist.com To manage your subscription (change email address, unsubscribe, etc.) use the links above. Members who post to this list grant license to the list to forward any message posted here to all past, current, or future members of the list. They also grant the list owner permission to maintain an archive or approve the archiving of list messages.