Cotherm - Replacement Unvented Water Heater Immersion Element ELE-14-IN-800-UNV Includes: 14" 1-3/4" Boss Incalloy Heating Element Cotherm T115 11" TSE Plug in Thermostat Compatible with: Kingspan (Range) Tribune Albion Unvented Water heaters RM Stelflow & Joule Telford Tempest Grant PLEASE NOTE REMOVAL OF THE THERMOSTAT CAP IS STRICTLY FORBIDDEN. TAMPERING WITH THE CAP OR RETURNING TO US WITHOUT THE SCREWS WILL INVALIDATE YOUR WARRANTY.