25m Extra Heavy Duty pressure washer hose (Double braided Wire) Suitable for power washers up to 6820 psi Double Brained Heavy Duty pressure hose One side to lance is 5/16" male quick connector, One side to pump is 5/16" female quick connector For Models: All petrol and diesel pressure washers. PSI (Pounds per Square Inch) refers to the amount of cleaning pressure that the unit can produce, this hose is suitable for up to 6820psi. The steel-braided hose is covered with a bendable rubber casing. Professionals love these hoses because they offer the flexibility of rubber without the marring.