This access panel consists of aluminium frame, with cement sheets and two or more stainless steel snaps.
The thickness of the inner frame is 15 mm and the cement sheets has a thickness of 12,5 mm, recessed to allow flush plastering.
The external frame consists of a tubular profile, on which special hinges are fixed, with opening up to 175°.
From the measure 300x300 the access panel is supplied with two or more safety chains with a snaplock to be reattached after each opening, in order to ensure safety.
A joint gap of 3 mm is visible between outer frame and door leaf, which is equipped with a airtight and dustproof joint.