The Allied Gomco 01-90-2691 is a durable, stainless steel replacement tube designed for the internal vacuum assembly of Gomco Model 300 portable aspirators. This short metal tube acts as a critical conduit between the pump head and the collection bottle interface. Its rigid construction ensures it will not collapse under high vacuum pressure, maintaining a consistent flow path. It is precision-engineered to provide a secure, leak-proof connection, ensuring the aspirator operates at peak efficiency during general suctioning procedures.