What material is used to hold the two spray heads on the spray bar?

The Boom Bars on the ST-251BH Sprayer are metal. The 90’ Nozzle Body passes through the metal Boom Bar and is held in place by a plastic Jam Nut. Each part on the ST-251BH Sprayer is covered by our Warranty. The ST-251BH Sprayer is designed to provide many years of service.

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