Type Altus (AII) - Deck hatches, ventilation hatches, and escape hatches. The best hatch for the mid-price segment. This type of hatch is offered with a sturdy anodized aluminum profile (height 21 mm) and has a satin finish. This hatch is classified for area A and can be installed in usage area A II. The acrylic glass has a thickness of 10 mm. The glass color is 'dark smoke'. The Altus hatches are delivered with easy-to-use locks and can be opened at an angle of up to 90°. They can be opened and closed from both the inside and outside. It features a ventilation lock and can be completely sealed watertight. Safety instructions:.