Sierra International TS25111 200 Degree Trip Marine Temperature Switch &frac12; inch - 14 NPT Thread & Terminal Type &frac14; inch Blade Sierra TS25111 200 degree trip, marine temperature switch with 1/2-14 npt thread; terminal type: 1/4 inch blade Before ordering, please verify this is the correct part for your application. For assistance, please call Sierra's Tech support at 1-877-663-8396 All Sierra parts qualify for and are covered under Sierra's industry leading customer satisfaction warranty