... pressure, gas permeable, oleophobic , waterproof , ECU Protective Snap-In VentsReduce condensation, prevent contamination, equalize pressure, gas permeable ... ECU Protective Snap-In VentsECU (electronic controller unit)Protective Snap-In Vents are placed in these devices to ... non-shedding ,UV-resistant ,temperature-resistant .Protective snap –in vents, including its protective shield, injection molding ...