1 “Double nipple” De Dietrich 7621856

The Double nipple 1" is a threaded fitting used to connect two pipes or components in boiler and burner systems. This double-ended connector provides a secure and leak-resistant joint, making it ideal for extending lines or linking equipment. With a 1-inch size, it matches common plumbing standards in heating installations. Durable and easy to install, the double nipple is a fundamental spare part for any maintenance kit or system assembly.