Submittal Sheets Available Submittal Sheets Note: Click on underlined Description to view individual submittal sheet OptionDescription Grease Interceptor: Manual Cleaning, On-Floor Type -BXT Bolt-On Extension -BXT-HD Bolt-On Extension with Heavy Duty Cover -ET Enclosed Type Steel Frame and Cover -EXT Extension, 6" Standard -ISI Integrated Solids Basket -RT Recess Type Steel Frame and Cover Instructions Click on a link to download that Sheet. Check Option Box to select one or more Sheets. Click "Add To List" to add selected sheets to your Submittal List.