Heritage offers 10' ridge ventilators with 9" and 12" throats. Roll-formed from 26-gauge structural-quality Galvalume®, the vents are available in mill finish or Polar White. Each comes complete with rain cap, bird screen and continuously-adjustable damper, as well as the connector bar and gutter splices needed for installing multiple units in a continuous run. The base is preformed to the proper roof pitch (1:12 up to 4:12), and we provide instructions for their simple installation. Available with or without operators.