This jet is compatible and is the replacement jet for all Arctic Spas from 2002 through 2006.  This is the 3" size.  It is the directional jet and does not pulsate.  Instead it focuses the pressure on a specific area.  You can adjust the jet in any direction.  This jet is a special order.  The single pulse jet is a stock jet and is availabe to be shipped out immediately.  You can order it by clicking the link "3" Tri-Face Pulse Jet"