Westlake Royal Building Products


With an aesthetically pleasing, unobtrusive design, the Cap Master adds color and softens the look of vent pipes. Use with any 3" or 4" vent pipes, and with any roof pitch from 3/12 to 12/12. A smart friction clip ensures secure installation.

  • Exterior width: 4-13/16"w
  • Interior width/ventilation opening: 2-9/16"
  • Height: 13" (nominal from top to top edge of pitched base)
  • 18-7/16" to bottom edge of pitched base)