𝗨𝗡𝗜𝗩𝗘𝗥𝗦𝗔𝗟 𝗖𝗢𝗠𝗣𝗔𝗧𝗜𝗕𝗜𝗟𝗜𝗧𝗬 - 42001-0053S Heater Thermistor & 42001-0063S High Limit Switch & 42002-0024S Stack Flue Sensor Replacement compatible with Pentair Sta-Rite, MasterTemp, Max-E-Therm pool and spa heaters electrical systems 𝗣𝗥𝗘𝗠𝗜𝗨𝗠 𝗤𝗨𝗔𝗟𝗜𝗧𝗬 - Our products are made of stainless steel, rust free material, easy to install and sturdy to use. The Stack Flue Sensor prevents the flue gas output from exceeding 500 degrees F, 42001-0053S can operate temperature from -20°C to 80°C. Also 42001-0063S sensor detects when water temperature exceeds safe level and automatically opens heat exchanger outlet 𝗘𝗔𝗦𝗬 𝗜𝗡𝗦𝗧𝗔𝗟𝗟𝗔𝗧𝗜𝗢𝗡 & 𝗦𝗔𝗩𝗘 𝗠𝗢𝗡𝗘𝗬 - Find a video from Youtube, just take a few minute to replace following the video. Make sure the power is shut off before replacement, and wear work gloves to protect your hands.Save yourself from the high prices of the pool store or an expensive repair call 𝗣𝗔𝗖𝗞𝗔𝗚𝗘 𝗜𝗡𝗖𝗟𝗨𝗘𝗗𝗦 - 1pc*42001-0063S 1pc*42001-0053S 1pc*42002-0024S 𝗦𝗛𝗢𝗣 𝗪𝗜𝗧𝗛 𝗖𝗢𝗡𝗙𝗜𝗗𝗘𝗡𝗖𝗘 - Funmit adhere to provide all customers with a simple, streamlined shopping experience of large appliance replacement parts, and prove that we have the highest quality parts and service out there. We stand by our products, and our customers are our focus as a business. If you have any quality problem, please contact Funmit customer service team in time, and we will try our best to solve your problems 42002-0024S Stack Flue Sensor 42001-0063S High Limit Switch