HydroAir Microssage Grill and Flowpath Assembly

This assembly is designed for specific convertible jet systems. Before purchasing, measure the face diameter of your existing jet to ensure it matches the 3.56-inch diameter of this model, and confirm your current jet uses a snap-in installation method.

This is the internal grill and flowpath assembly. It is designed to snap into an existing jet housing, so you do not need to replace the entire plumbing structure behind the shell.

Yes, the snap-in design allows you to remove the old internal assembly and click the new one into place by hand. No specialized tools or plumbing experience are required for this replacement.

The 'Roto' designation means the internal nozzle rotates while water flows through it. This creates a spinning, pulsating sensation rather than a static stream, which is generally better for targeted muscle relief.

While the internal mechanism may fit, replacing a different style with this smooth-face version will change the aesthetic of your spa. Ensure the housing compatibility remains the same, as the snap-in mechanism must align perfectly with your existing jet body.