These jets are a threaded version of the Power Storm jet and are a part of the Storm Series by Waterway. These jets thread into place, rather than having 2 tabs that lock into place, like the regular Power Storm Spa Jets. These are a newer style of Waterway spa jet only coming into use in the last several years.
Most jets will be pictured in gray, but are available in other colors. Choose your jet to see what colors are available, or use the filter on the left to further narrow your choices.