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Dust Collection Port Cap For 4" O.D. Ports

Item #158282
$0.99 - 10 or more
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Product Information:

We have all made a mess with tape and cardboard to cover an open port in our dust-collection systems. This simple cap slides over the 4" OD port of most fittings and machines to prevent air leaks in the system.

  • Covers most 4" OD ports on fittings and machines

  • Wide side wall facilitates clamps or X-Treme Tape wrap

  • Flexible material to fit a range of 4" ports

  • Includes lanyard tab to keep the cap near the fitting when not in use

  • Constructed of tough abrasion-resistant plastic resins

  • California Residents: Click here for Proposition 65 information.


  • Types of Dust Collector Fittings - The different styles of dust collection fittings and their recommended applications.
  • Adding A Pre-Separator To Your Dust Collection System - Shows how to build and install A Pre-Separator