The Mueller Streamline Manual Air Vent Key is a practical tool designed for easy operation of manual air vents in heating and cooling systems. Featuring a 5mm square design, this blue key is made from durable materials, ensuring longevity and ease of use. It allows for quick and efficient venting of trapped air, which is essential for maintaining optimal system performance. This air vent key is an essential accessory for both residential and commercial HVAC applications.
