Hydrant Adapter, 2 1 2" Female NPT x 2 1 2" Female NST Swivel, Dixon SF250F 0004525 and adjustable spray nozzles Water 0012287 and adjustable spray nozzles Water Tank Trucks Air operated control of compatible water distribution and spray circuits Water Truck Repairs & Upfits Suitable for replacement installations and new water truck spray system builds Inline Water Control Can be installed within compatible 3" grooved plumbing as an inline control valve Uptime Matters The new flow path is designed to reduce unnecessary internal water deflection and promote better flow through the spray head Hydrant Adapter 2 1 2" Female NPT x 2 1 2" Female NST (NH) Swiveling 2 1 2" Female NST