M12X1.5 Waterproof Dustproof Oil Proof Air Permeable Vent for Battery Energy Storage Systems. Designed with high-performance e-PTFE membrane, this vent offers excellent waterproof, dustproof, and oil-proof protection while ensuring efficient air permeability (500-2000ml/min@7kpa). Built to withstand extreme conditions from -40℃ to 125℃, it provides reliable IP65-IP68 protection levels, making it ideal for energy storage systems and battery applications in harsh environments.More