Pentair 473715z Pressure Relief Valve Replacement Kit Pool and Spa Heater Water Systems<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Pressure relief valve kit replacement</li><li>Fits Pentair MasterTemp pool and spa heater water systems</li><li>Also fits Pentair Sta-Rite Max-E-Therm pool and spa heater water systems</li></ul></div><img src="http://ecx.images-amazon.com/images/I/51TyEDMERhL.jpg" noproxy>