MasterCool exterior cooler grill cover made of durable washable polyester, designed to protect your evaporative cooler from the elements. Prevents airflow to the inside of the home during the off-season. Fitted fabric cover has elastic edge and tie down for secure fit. Provides attractive barrier from cold air, dust and dirt when cooler is not in use. Compatible with MasterCool cooler models MCP44 and MCP59.