Busch Air Vent Valve Part# 543138026

The Busch Air Vent Valve, with part number 543138026, is designed to be used on specific pump models: MM1100BV, MM1144BV, MM1402AV, and MM1502AV. This air vent valve serves the purpose of releasing trapped air or gases from the pump system, ensuring optimal performance and preventing any potential issues caused by air accumulation. It is an essential component for maintaining the efficiency and reliability of the mentioned pump models.