that is a knockoff of a 'Facet' brand fuel pump. I assume this is not fuel injected genny. there are 2 version, 4-6pis, and 5-9PSI, (IIRC).

I always use a fuel pressure regulator on a electric fuel pump to limit the pressure to the float sw.

https://www.amazon.com/Facet-Purolator-3-4-5Psi-30-48Cm-6558398-D72347/dp/B08WHXNXJL/ref=asc_df_B08WHXNXJL/?tag=hyprod-20&linkCode=df0&hvadid=525305219006&hvpos=&hvnetw=g&hvrand=15823105315428355111&hvpone=&hvptwo=&hvqmt=&hvdev=c&hvdvcmdl=&hvlocint=&hvlocphy=9011566&hvtargid=pla-1295756042070&psc=1

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psi regulator

https://www.amazon.com/RJSPHH-Regulator-Carburetor-Adjustable-Universal/dp/B092VCSLPV/ref=sr_1_5?keywords=fuel+pressure+regulator&qid=1671025751&s=automotive&sprefix=fuel+press%2Cautomotive%2C88&sr=1-5