With Flapper: The ARITA Cast Iron Sight Glass with Flapper is equipped with a flapper mechanism that offers better flow control and prevents splashing. It’s ideal for applications where both clear viewing and flow regulation are required, making it suitable for systems that need controlled observation of fluid or gas flow.
Without Flapper: The ARITA Cast Iron Sight Glass without Flapper offers a simpler design for clear, unobstructed fluid viewing. This option is perfect for applications where you just need to monitor the flow or level of fluid without additional flow regulation features.