The Middleby Marshall 27396-0005 Heat Slinger is a high-performance cooking accessory designed to efficiently distribute heat within commercial ovens. It features a 4-3/4" outer diameter and a 7/8" bore, allowing for optimal airflow and even heat distribution.This heat slinger is crucial for achieving consistent cooking results and maximizing oven efficiency. https://partsfe.com/shop-other-categories/additional-parts/27396-0005-heat-slinger-4-3-4-od-7-8-bore