A spa jet mounting assembly and method of installing and utilizing the same. An outer housing with an interior threaded chamber is connected to water and air pipes outside a bath. An inner housing, with an external threaded section is inserted through a passageway in the bath, and threadedly fastened within the threaded chamber of the outer housing. The bath surface and one or more gaskets are secured between flanges of the inner and outer housings. The inner housing includes one or more ports to drain water from the assembly. The opening in the bath can be sealed with an o-ring or by forming a seal via silicone injection. With the injection technique, silicone is injected into the inlet port of the outer housing, air is released through the outlet port of the outer housing, and a seal is formed around the passageway.