The KRAL*/2 type access hatches are made of the same materials as KRAL. The difference is the thickness of the cardboard - up to 25 mm. The products is more durable and it is characterized by a higher degree of  sound insulation. The used special hinges allow to easily remove the hatch leaf out from the frame. Due to the considerable weight of the leaf, the products are equipped with a cable to protect against uncontrolled opening.