The Eskabe 2220518 is a genuine M8 Thermocouple Nut for the Eskabe DVEL8, DVEL12, DVEL20 direct vent gas heaters. M8 nut that secures the thermocouple to the gas valve.
Eskabe DVEL heaters are non-electric, so every part in the ignition and gas train matters: the piezo ignitor, pilot, thermocouple, and gas valve keep the heater running with no power at all. This is an OEM Eskabe part, so it fits and performs the way the original did. Confirm your model and fuel type (natural gas or propane) before ordering; both are on the rating label.
Rural Energy is the Eskabe distributor and keeps DVEL8, DVEL12, and DVEL20 parts in stock for fast shipping to dealers, contractors, and homeowners.