Tecmark Spa 3902 Series Universal Pressure Switch 25A w/out Brass Fittings 3902<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Replacement Water Pressure Switch for Pool Heaters (3902)</li><li>1/8" npt plastic threading</li><li>For Pentair MasterTemp Pool Heaters</li><li>Pentair Part #42001-0060S</li><li>Fits Many Other Pool Heaters as Well</li></ul></div><img src="http://ecx.images-amazon.com/images/I/310Sf8L%2BXLL.jpg" noproxy>