A standard-sized manway for bottom access to any Sealed tank. This option installs a rectangular manway in place of the oval racking door that comes standard on a sealed tank. A must-have for tanks being used for red fermentation as this allows the remaining solids to be removed for pressing after all the liquid has been pumped or drained out of the tank. This size manway is also used for being able to enter a tank from the bottom for cleaning. Please ensure the tank has been fully ventilated and any residual CO2 has been blown out before attempting to enter the tank. Failure to do so can result in injury or death.Please Note: Purchasing this item installs an optional feature on a Speidel Tank. This item cannot be purchased independently, and must be purchased on the same invoice as the tank it is to be installed on to ensure accurate manufacturing.