Select a Product Part NumberDescriptionSize 4X4BDDOORASBLYBottom drop door assembly with gasket4" 5X4BDDOORASBLYBottom drop door assembly with gasket5" 6X4BDDOORASBLYBottom drop door assembly with gasket6" 8X4BDDOORASBLYBottom drop door assembly with gasket8" 5/6BD DOORBottom drop door5" and 6" 3/8RETAINERBOLTGasket retainer bolt and lock nutAll sizes 5-RFRetention flange for low profile teesLow profile tees 4X4-BDGASKETBottom drop door gasket 4" 3/8T-BOLTBottom drop door T-bolt 4" 3/8INSERTBottom drop door threaded insert for T-bolt 4" 4X4-BD-DOORBottom drop door 4" 6X4-BDGASKETBottom drop door gasket 6" 8X4-BDGASKETBottom drop door gasket 8" BDBOLTSBottom drop door bolt 5",6" and 8" BDWINGNUTBottom drop door wing nut 5",6" and 8" GASKETRETAINERGasket retainer All sizes