Our BSS-RBH Reverse Emergency Escape Hatches are the best and only true emergency escape hatch on the market today. Every shelter should have an emergency escape hatch. These are extremely useful in the event of an earth shift or blast that causes debris or compromises your main exit. Our BSS-EEH are a must have for all shelters and are for emergency use only. We always manufacture our doors and hatches with the highest quality craftsmanship, to insure the best and most reliable products. These are manufactured by us in the USA by Americans. Not only are these easy to install, as they cast in place in the concrete, but they can be cast in any thickness up to 24 inches (thicker sizes are available upon request). The top of hatch does not reach the surface of the earth after correct installation. They are a must have in your shelter for emergency escape purposes. Call our office for special orders or with any questions you may have at (. We look forward to speaking with you. Product Features and Description