Part number 229-7617G is a Waterway 5-inch Twin Roto Power Storm Thread-In Jet Internal with a textured gray, 5-point scalloped face style.
The "G" suffix typically identifies this internal as being intended for Gunite (concrete or block-built) spa and pool applications, though it is functionally compatible with standard Power Storm thread-in jet bodies.
As of 2026, several hot tub manufacturers and brands have used this part or the compatible Power Storm system in their spas, including Master Spas, Cal Spas, Artesian Spas, Leisure Bay Spas, LA Spas, Catalina Spas, Coleman Spas, Sundance Spas, and Hot Spring Spas.
Technical Specifications (2026) for this jet internal include a Twin Roto massage type, a thread-in connection, and dimensions of a 5-inch face diameter with a total length of approximately 5-3/8 inches.