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RPM 25mm BOV Hydrophobic Pre-Filter Cover

Sale price $3.99

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RPM 25mm BOV Hydrophobic Water-Repellent Pre-Filter

Protect your blow-off valve system with the RPM 25mm BOV Filter Pre-Filter, engineered with RPM’s proprietary hydrophobic silicone-treated screen for the ultimate in filtration and airflow efficiency. Designed to fit over any 25mm BOV air filter, this RPM BOV pre-filter guards your intake from fine dust, sand, clay, and even water—making it the ideal companion for harsh off-road environments.

The pre-filter features a durable micron screen material treated with a silicone-based coating that repels moisture and blocks particles as small as .005” in diameter. It allows for high airflow without restriction while prolonging the life of your BOV filter and preserving engine efficiency.

Whether you're blasting through dunes or crawling through the mud, the RPM BOV pre-filter is the first line of defense your system needs. This is a pre-filter only and does not include a BOV filter.


🔹 Key Features:

  • Fits all 25mm blow-off valve filters
  • Hydrophobic, silicone-treated mesh resists water and dust
  • Filters out particles as small as .005”
  • Maintains airflow with no performance drop
  • Built from durable micro-screen material
  • Easy slip-on design for quick installation
  • Pre-filter only—filter not included
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