Core One Automatic Top Vents

Take full control of your enclosure’s airflow and thermal performance—without lifting a finger. The Core One Automatic Top Vent Cover is a smart, zero-maintenance solution designed to work in harmony with your enclosure’s rear-mounted fans. As the fans adjust airflow and internal pressure, the top vent passively opens or closes, automatically regulating heat and air exchange. This pressure-sensitive cover enables your enclosure to reach higher internal temperatures—ideal for materials like ABS, ASA, and Nylon—without needing to operate the manual vent. When the rear fans pull enough air to lower internal pressure, the vent lifts to allow fresh air in; when airflow slows, it reseals to preserve heat. Features: 🌬 Fan-Driven Passive Venting – Works with rear exhaust fans to open and close based on airflow and internal pressure. 🔥 Improved Heat Retention – Helps maintain higher, more stable enclosure temps by sealing until airflow is needed. ⚙ Zero Electronics – Fully mechanical operatio