I have this: YOUYUE 858D Hot Air Gun Rework Station SMD Solder Soldering Digital 110V 700W https://www.amazon.com/dp/B00P8Z4RPG/ref=cm_sw_r_cp_api_i_ICU1Eb0QPJG4V
I think this is the one that comes under a million brands.
It was great up until it developed an intermittent connection in the cable. Now it runs at full air speed regardless of the know setting unless I bend the cable just right.
Actively looking for a replacement.