2186930 Diffuser Diverter, Mini Storm Jet To install without damage you must - Place the jet faceplate of the jet on the table. With the internals installed in the diffuser - Square the diffuser on the faceplate Once squared and aligned with the snap-on positions. Slowly push STRAIGHT DOWN ( not at an angle) It will slide on evenly and will not break.
These diffusers are for Waterway Spa Jets and may not fit on any other.