Rising Dragon now only makes threaded jets instead of snap-in jets. If you have the older snap-in jets, then you require a threaded adaptor sold separately here. These jets are not interchangeable with Waterway jets.
Rising Dragon jets have been used in Arctic Spas since 2004 and in several other manufacturers. Older Rising Dragon jets also come with a white back with R1, R2, R3, or R4 stamped by the part number. Single pulsator jets rotate in a circular motion providing a soothing and massaging effect. Also used in Four Winds Spas, Sunbelt Spas and Morgan Spas.