Pressure Washer House and Siding Detergent – 1 Gallon

Pressure Washer Detergent for Painted & Exterior Surfaces

The WJ85.490.051 Pressure Washer Detergent is designed to safely and effectively clean a wide range of exterior surfaces, including painted finishes, house siding, gutters, stucco, concrete, and glass. When used with the black soaper nozzle and the pump’s soap suction tube, this detergent easily siphons into the pressure stream to loosen dirt, grime, and environmental buildup. For optimal results, allow the detergent to dwell briefly before rinsing with high pressure to reveal a clean, streak-free surface.

Formulated with a low-viscosity blend for smooth flow through pressure washer systems, this detergent delivers consistent performance and efficient cleaning. Packaged in a 3.8 L jug, it’s ideal for routine exterior maintenance and professional cleaning applications where surface safety and shine matter most.