Product Details: The Muncie Side Mount Polyethylene Breather Cap is the perfect solution for keeping your tank free from contaminants. This cap is designed to provide quick and secure installation and removal, while also preventing the entry of dust, dirt and moisture. The cap ensures consistent and reliable airflow to the tank, allowing it to function properly and efficiently. With its durable construction and easy-to-use design, it is the perfect choice for any tank. FleetPride is your First Click in Heavy Duty®.