Pentair 77707-0431 Gas Orifice Replacement Kit Pool and Spa Natural Gas Heater<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Gas orifice replacement kit</li><li>Fits Pentair Sta-Rite Max-E-Therm pool and spa natural gas heater model 200</li><li>Also fits Pentair MasterTemp pool and spa natural gas heater model 200</li><li>Includes 200K-BTU</li></ul></div><img src="http://ecx.images-amazon.com/images/I/519Zo0SFtCL.jpg" noproxy>