RD201-L4421S Rising Dragon 4.37" diameter spa jet with stainless steel/black twin roto jet action.

This is a snap-in style jet that screws into the Rising Dragon jet body.

This part is the actual Twin Spin jet insert in stainless steel/black.

This RD201-L4421S has a smooth stainless steel style outer ring.

Rising Dragon, Quantum, Dual Rotating, 4" Face, Smooth, Black/Stainless Steel

 this one is the snap-in style jet beginning with RD201 - if you need the thread-in style of the same jet, see part number beginning with RD203