This high‑quality ventilation plug with integrated filter is designed for installation in the upper section of hydraulic tanks, ensuring reliable protection of the system during oil suction. By effectively preventing dust, dirt, and other airborne contaminants from entering, it safeguards the purity of the hydraulic fluid and extends the service life of key components. Engineered for demanding environments with elevated dust levels, the plug combines durability with precision: the robust aluminum body guarantees strength and resistance to corrosion, the steel cover provides additional mechanical protection, while the bronze sinter filter element ensures efficient filtration and long‑lasting performance. A guarnital fiber washer completes the assembly, delivering a secure and tight seal. Thanks to its solid construction and advanced filtering capability, this ventilation plug is an essential solution for maintaining system reliability, reducing downtime, and optimizing the efficiency of hydraulic installations operating in challenging industrial conditions.