Maax 500 Power Directional Stainless Jet 107978 Theramaax

107978 is 500 series, POWER Directional nozzle, stainless steel style THERAMAAX, 5" diameter ,with jet body.

Comes with free jet body included.  You may not need the body, but you will need to remove the jet insert from the body if you only need the insert.

This item now has a reduced price and also includes the free jet body that mounts to underside of spa shell if needed.  Note you do not need to use these jet bodies if you only need to replace the insert. They are the same body as the ones in your spa. Keep it as a spare in case you need to fix the jet body one day. 

How the insert is removed:  turn the jet face to the left until it stops, then press in and turn harder to the left to get the jet insert out - it is ok to use a little force.  Then remove jet insert from the jet body.
To put insert back in, you do not need to turn it, just place the insert in the jet body and press - it snaps in since this is a snap-in style jet. (rotate out, snap in)

This jet model only available as a complete jet with body.

The roto jet with a rotational nozzle is 107979.

Around 5 inches in face diameter.