We couldn’t remember so we asked around and it wasn’t clear whether the jet nozzle diffuser JN was manufactured by Price Industries, or by Krantz Komponentz and distributed by Price. One thing is for sure: JN is not available on the market anymore. Its documentation can’t even be found on the web.
The best equivalent product that we’ve used instead is the KAM Nozzle Jet Diffuser by EffectiV. Other notable products are from Air Concepts and Titus, but I personally prefer the KAM for its non-apparent screws and sleek design.