Promaster Vent Fan Roof Adapters/Shims


  • Use in the “valleys” of your Promaster roof corrugations to smooth out the surface to install a vent fan such as the Maxxfan.
  • Made from weatherproof plastic (PVC).
  • Kit includes 6x “shims” which is enough to fill in a space for a standard 14″ x 14″ opening.
  • We recommend using 3M 5200 adhesive to secure the shims in the valleys.
  • Here is a photo gallery of us installing a Maxxfan into a Promaster with these shims.
  • Note that these do not work with the “extra high roof” Promaster vans because the corrugations on the roof vary in depth.


SKU: VLO-003-PM-WH Category:
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