... equalize pressure, gas permeable, oleophobic , waterproof , ECU Protective Snap-In VentsReduce condensation, prevent contamination, equalize pressure, gas permeable, ... the ECU Protective Snap-In VentsECU (electronic controller unit)Protective Snap-In Vents are placed in these devices to ... and extended product life.2. Benefits and features of the ECU protective snap –in vents1 easy installation by ...