The manhole cover PRO+ System is made of hot-dip galvanized steel or stainless steel with a thickness of 2 mm. The depth of the tank is 50 mm and the installation height is only 75 mm. The frame is equipped with a special frost and weather seal to protect against seepage and odor leakage. The frame is fixed by casting at floor level. The tub can then be filled and inserted into the frame. For assembly, the cover is fixed to the frame by means of clamping screws, which can be removed using the lifting key provided. Filling of the tub is possible with stone, tile, concrete, resin, granite, wood and hard flooring or other materials. Load: up to Class B125 according to EN 124. Material: Hot-dip galvanized steel or 2 mm thick stainless steel frame and tub. Areas of application: For indoor and outdoor floor drains. Recommended for manholes over 50 kg. Opening: Each FF manhole cover comes with locking/lifting keys and an assembly manual. The tank is secured to the frame by anchor screws. Installation: Installation must be done professionally according to our installation instructions. Dimensions: Customized sizes can be produced in every dimension upon enquiry.