Durable IBC tank cap made from high-density polyethylene (HDPE) with dual vents for reliable, long-lasting performance. Key benefits Built to last: HDPE construction delivers high strength and chemical resistance for extended service life in tank applications. Controlled ventilation: Two precision vents provide airflow to reduce pressure build-up and help protect stored contents while maintaining a secure seal. Fast, simple installation: Cap aligns easily and screws into place for quick fitment—no special tools or experience required. Versatile compatibility: Designed for use with IBC water tanks and suitable for rain barrels, aquariums, and a range of industrial and agricultural storage needs. How it solves common problems Prevents pressure-related leaks and vacuum issues by allowing air exchange while preserving a tight closure. Reduces contamination risk by sealing the tank when closed and controlling airflow through the integrated vents. Saves time and labor with a user-friendly screw-in design that simplifies replacement and maintenance. Practical applications Rainwater harvesting: Keeps collection tanks ventilated and sealed to protect water quality and prevent overpressure. IBC conversions and aquaculture: Ideal for aquarium or aquaponics setups that require controlled airflow without compromising a secure cap. Farm and industrial water storage: Reliable, easy-to-install cap for irrigation tanks, mixing units, or temporary storage containers. Product details Material: High-density polyethylene (HDPE) Feature: Two integrated vents for airflow control Installation: Screw-in, easy alignment Compatibility: IBC water tanks, rain barrels, aquariums, and other industrial or agricultural tank uses Reliable, simple, and compatible—this IBC cap provides effective ventilation and a secure seal for a wide range of tank applications.