Pentair 42002-0024S Stack Flue Sensor Replacement Pool and Spa Heater Electrical Systems<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Stack flue sensor replacement</li><li>Fits Pentair MasterTemp pool and spa heater electrical systems</li><li>Also fits Pentair Sta-Rite Max-E-Therm pool and spa heater electrical systems model SR200， SR333， SR400</li><li>Measures 6-inch length by 6-inch height by 6-inch width</li></ul></div><img src="http://ecx.images-amazon.com/images/I/31l1brcKVaL.jpg" noproxy>