Roundup 181795 Professional Wand and Shut-Off Replacement Kit 21-inch wand plus premium, lockable shut off with brass components and an in-line filter Fits all backpacks or sprayers with 9/16 inch hose For Roundup, Field King, Smith, and other sprayers with a 9/16 inch hose Includes poly adjustable nozzle (solid stream to mist) Accepts TeeJet nozzles