The Cast Boot for Combustion Air Entry (18"D) from Bradford White Corporation is engineered for optimal airflow in heating systems. This durable cast component is designed to withstand high temperatures and ensure efficient combustion. Its 18-inch diameter is ideal for various applications, providing a reliable solution for air intake in Bradford White water heaters. The boot meets industry standards for performance and safety, making it a trusted choice for plumbing professionals. This component is essential for maintaining proper air flow and system efficiency.