Top hatches are highly useful in any sealed-top tank and must-haves for tanks that will be used for red fermentation. The hatch allows access for making additions, pumping over or punching down, and gives top-down access for cleaning. Foward-set hatches are ideal for tank installations where catwalks run past the front of the tank, for tanks where the hatch will be accessed by a ladder, or where the tank is short enough for the hatch to be reached from the ground. The sloped position of this hatch offers a more economical option, but by default leaves a little bit of headspace in the tank if you want to be able to access the hatch while the tank is full, because the front lip of the hatch is lower than the apex of the tank ceiling.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.