SnozzlePro Hair Dryer Attachment Adapter for Concentrator Nozzles - Patented No-Slip Design - Fits Most Standard Blow Dryers 1.5”- 2.25”

I suggested the universal adapter. SnozzlePro Universal Hair Dryer... https://www.amazon.com/dp/B07X8Z9W22?ref=ppx_pop_mob_ap_share

Have you tried something like this? I use this when my diffuser did not fit right. SnozzlePro Universal Hair Dryer... https://www.amazon.com/dp/B07X8Z9W22?ref=ppx_pop_mob_ap_share