120 bar vs 130 bar — does the difference matter?

Marginal. Flow rate and pump quality matter more than 10 bar of headline pressure.

Will 120 bar lift moss from a patio?

Yes, especially with a surface-cleaner attachment and a biocide pre-treatment.

Kärcher K3 Full Control combines pressure, hose reel and the Karcher accessory ecosystem.

120 bar washers sit in the value sweet spot — enough power for decking and small drives without paying for pro-grade flow rates.

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Expect 1700W induction or universal motors, 6 L/min flow and 8–10 m hose. Decent for occasional driveway clean-ups and weekly patio work.

Top picks: Kärcher K3 Full Control, Nilfisk Core 125-5, Bosch EasyAquatak 120. Price band £100–£170.

Pair with a patio cleaner attachment for fast surface work, or stick with the standard fan lance for cars and garden furniture.