The part number 212-7639-STS refers to a Waterway 5-inch Power Storm Directional spa jet internal.
This jet is a very common, generic part in the hot tub industry.
Waterway Plastics is a major supplier that manufactures components for a vast number of spa brands. Therefore, this specific jet is not limited to a single manufacturer but is used across many different spa models. The jet features a 5-inch face, 5-scallop design, a textured sterling silver finish, and uses a snap-in style installation.
Here is an extensive list of spa manufacturers who are known to have used Waterway Power Storm jets (including the 212-7639-STS) in at least some of their hot tubs:
Aquaterra Spas
Artesian Spas
Beachcomber Spas
Cal Spas
Catalina Spas
Coast Spas
Coleman Spas
Destiny River
Dimension One Spas
Dynasty Spas
Four Winds Spas
Gatsby Spas
Hawkeye
Hot Spring Spas
Hydrospa
Infinity
L.A. Spas
Master Spas
Sundance Spas
Spa Crest
Viking Spas
Because many manufacturers use Waterway as their OEM supplier, you can often find this exact replacement part at various online spa parts retailers.
