The Eskabe 2290121 is a genuine Thermocouple for the Eskabe DVEL12, DVEL20 direct vent gas heaters. Thermocouple that proves the pilot flame to the gas valve. Replace when the pilot lights but will not stay lit after the knob is released.
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.