The Grasso Filter Upper Housing is a protective component designed to encase the upper part of the filter in refrigeration and HVAC systems. It ensures that the filter remains securely in place while effectively removing contaminants, dirt, and moisture from the refrigerant. The upper housing helps maintain the system’s efficiency by preventing debris from damaging internal components, contributing to smooth operation and extending the lifespan of the equipment. It also aids in ensuring the proper flow of refrigerant through the system.