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NEW Nilfisk Hot Pressure WashersPressure WashersMachine Parts by BrandPumps & SparesPopular High Pressure HosesHose ReelsNozzlesPressure Washer TriggersUnloader ValvesInterpump Service Kits1/4″ BSP female fixed and rotating sewer jetting nozzles, including Suttner ST49 and ST49.1 models, for drain and pipe cleaning. Choose rear jets only or a forward jet for clearing blockages. Match the nozzle size to your machine using our Pressure Washer Nozzle Chart and confirm the connection with our BSP Thread Size Chart.