The Allied Gomco 01-90-100061-2G is an OEM replacement back cover kit specifically designed for the OptiVac G180 portable suction unit. This kit ensures the internal components, including the battery and pump assembly, remain fully enclosed and protected from environmental contaminants and physical impact. Constructed from durable, high-impact medical-grade plastic, the cover maintains the unit's sealed, water-resistant integrity, which is essential for easy cleaning and preventing damage to sensitive electronics. It is a critical component for maintaining the professional appearance and structural safety of the G180 aspirator during portable clinical use.