About High PSI Pressure Washers
Above 2,500 PSI you're into prosumer or trade territory. Petrol washers like the Hyundai HYW3100P deliver 3,100 PSI; commercial Kärcher HD 5/15 hits 2,175 PSI from a single-phase electric motor.
Top high-PSI picks: Hyundai HYW3100P (3,100 PSI petrol), Karcher HD 5/15 C (2,175 PSI electric), SwitZer SZ17 (2,500 PSI petrol).
Watch the PSI vs flow rate trade-off — high PSI with low GPM is less effective than a balanced mid-PSI / high-flow combination.