Thermocouple-Equipped Tilt Switch For Patio And Room Heaters,, By Mcampas. Product Features ?The thermocouple sensor with safety dump switch replacement Kit fits most gas/propane heater, patio heater, and thermoelectric gas heaters. ?Weak current FD4 Dump safety switch is for gas R?10 m? and universal thermocouple wire total 23.5 inches(600mm). thread M8 x 1 Ends ?Easy To Install Use.The probe is connected to the ignition device, the thermocouple is connected to the valve, and the other two ports are connected to the safety dumping switch, which does not require special tools and is fully compatible with the original components. ?Usually the service life of Thermoelectric Safety Device: ?10000 times, If your heater cannot lit and the thermocouple does not work, it will be necessary to replace this part?which can prevent the occurrence of gas leakage when the fire is extinguished and the gas is still on, which is more secure. ?The safety dump switch thermocouple sensor by CSA certificate, the head of the thermocouple is not threaded, Check that it is suitable for your heater before purchasing the product. Shipping: Shipping is complimentary within the lower 48 US States. We Do Not Ship to PO/APO Boxes, HI or Alaska We Do Not Ship Outside of the Continental US All items ship within 24-72 hours of Payment For large items that require Freight shipping a valid phone number is required to call and schedule your delivery Terms of Sale and Feedback: Feedback is extremely important to us and If you are satisfied with our transaction, please take a moment to leave Positive Feedback. YOUR Satisfaction is our #1 Priority! If there are any issues, PLEASE contact us BEFORE leaving a neutral or negative rating so that we may resolve any concerns. We PROMISE we can make you happy if you give us a fair chance. Returns / Concerns: All items qualify for returns within 14 - 30 days of receipt. Buyer is responsible for return shipping on any item that is not damaged Please be sure this is an item you want before making your purchase. Customer Satisfaction is our TOP priority! All items are IN STOCK at time of listing. Inventory changes constantly and it is impossible to maintain a perfectly accurate count of all items. Please do not penalize us if we have to issue you a refund! Thank You For Your Business!