Description
The Pentair/Sta-Rite 38404-4097S is a 3/4″ union connector (service union) for pool and spa heater plumbing. It features a 3/4″ female pipe thread service connection intended for burner/gas plumbing assemblies; some listings indicate the union body may be sold without internal “keys” (items 3 and 4). Compatible with Pentair MasterTemp (including MasterTemp 125), Sta-Rite Max-E-Therm, and Pentair ETI 400 heaters.





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