The Original Adapter is used to adapt to various exhaust fans in the industry. For best results, grease should be directed to fall into the middle of the filter/pillow. The adapter allows grease to get past the fan base to hit into the grease containment system. Used as a spout replacement for fans with no spout or missing spout. Flat sides are designed to be formed to shape around the fan base prior to installing screws.
1-1/4 Inch Diameter