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Bolt-On Breather Vent

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Brand: TRS




PART #: 2 x WP9


When building a custom set of headlights, moisture can be a concern. These bolt-on breather vents are the ideal solution, designed to release moisture from your housings without allowing any in. Unlike traditional moisture membranes that merely stick on, these vents are securely bolted, ensuring they won't fall off. Simple to install, just drill a 12mm hole, insert the vent, and tighten the lock nut. They represent the new gold standard in professional headlight moisture management. With these vents, you get top-notch protection at an affordable price, ensuring your headlights remain dry and clear.


  • Versatile Design: Perfect for custom headlights, ensuring moisture-free housings.
  • Easy Installation: Just drill, insert, and tighten for a secure fit.
  • Durable: Bolt-on design means they won't fall off like traditional stick-on membranes.
  • Professional Standard: The go-to choice for top-tier headlight moisture management.
  • Value for Money: Premium protection for your headlights at an unbeatable price.


  • Breathers: 2x (One Pair) Bolt-on Moisture Breathers

  • HARDWARE: Silicone o-ring + lock ring


  • Dimensions: 20mm DIA

  • Required Hole: 12mm

  • Material: Plastic


  • HOLE SIZE: 12mm Required

  • RETROFITS: Great to reduce risk of moisture!

Versatile: Building a custom set of headlights, and worried about moisture problems? These bolt-on breather vents are the perfect solution to let moisture exhale from your housings, without letting moisture in.

Simple To Use: Drill a 12mm hole in your housings, insert the front-side of the breather vent in, tighten on the lock nut - and you're ready to roll!

Better: Than the traditional moisture membranes, because they bolt-on rather than just stick on. Therefore, these headlight moisture vents won't ever fall off - and leave you with a big hole in the back of your housing.

Pros: These are the new standard in the most professional way to keep your headlights dry. For the price, the piece of mind is priceless!

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