A B&G 1325 Tip Cap would be required to attach the B&G 1/2" Tapered Wood Tip - Part 24040077 to the wand of a B&G Sprayer. The wire cable needs to inserted in the valve handle assembly. Please refer to pages 8 & 9 of the B&G Repair Manual for the Extanda Ban Valve for step by step instructions on how to assemble the handle and insert the wire. You may also contact B&G directly at (678)-688-5601.