Think Crucial Replacement for GE Defrost Refrigerator Thermostat, Compatible With Part # WR50X10068, with Flat Clip # L140-30, Fits HAP616-TU, HAP616B-TU, HAP633-U & HAP726-U EXTREMELY DURABLE so when you install new defrost thermostats in your GE refrigerator you have no more problems! VERY RELIABLE because it is an exact replica of part # WR50X10068 so you will have no issues with your purchase! INCREDIBLY STRONG because you shouldn't have to replace your defrost thermostat constantly! Plus it fits GE HAP616-TU, HAP616B-TU, HAP633-U, HAP726-U, HAP756-U, HAP759-TU, HAP8650B-U, HAP9726-U, & HAP9726B-U refrigerators. EASY TO INSTALL if you have experience installing these defrost thermostats. If not, a licensed appliance repair shop can easily do it for you! GUARANTEED SATISFACTION because of a 30 day full money back guarantee and a trusted Think Crucial warranty. We are so confident in our products that we have no problem giving you every penny back if you're unhappy with your purchase. You won't see promises like that from big box brands!