WELLUCK 50 Amp Generator Power Inlet Box, NEMA 3R Power Inlet Box, PB50, SS2-50P, CS6375 Generator Plug for Outdoor Receptacle, Generator Outlet, Weatherproof, ETL Listed, 125/250 Volt, 12500W https://www.amazon.com/dp/B08GLK5HJJ/ref=cm_sw_r_apan_glt_fabc_JNE1H0SQ9BC3WMA12XPJ?_encoding=UTF8&psc=1
My bad, Amazon does that when you copy it.
Looks like the same as what you found.