6540-644 Nut: For Jet Back 6540-646

For use with the following components:

• Jetface: 6540-643
• Jet nozzle: 6541-010
• Wall fitting: 6540-642
• O-ring: 6540-522
• Leveling washer: 6540-639
• Jetback: 6540-646

Please note: All of our parts are 100% new, OEM parts direct from Jacuzzi Hot Tubs or Sundance Spas.