This Avantco 178GSKT18801 door gasket is a direct replacement for the one that came with your Avantco bottle cooler or plate chiller. This gasket ensures that the unit's door closes with a tight seal, trapping cold air to maintain food safe temperatures and save energy. Use it to replace a worn gasket to keep your unit operating efficiently. It's compatible with Avantco HBB and GF series bottle coolers and plate chillers.