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Pressure washer compatibility: M22 14mm interface fits hoses and guns, compatible with BOSCH models using a 14 mm seat, check thread pitch to match your washer. M22 14mm fitting: Quick adapter links hose, pump, and spray gun for steady water flow. Quick connect coupler: Brass body with M22 x 1.5 thread and 14 mm inner seat, compact size simplifies setup in tight spaces and resists corrosion from water exposure during routine wash jobs. Pressure cleaning uses: Connects hose to spray gun or pump inlet, supports foam cannon and nozzle changes for cars, patios, siding, outdoor gear, and workshop tasks. Installation and scenarios: Hand tighten then wrench snug, add silicone grease to O rings, ideal for home driveways, garden paths, decks, storefronts, and rental fleets for quicker setup.