The floor manhole cover PRO+ Fire Protection System is made of hot-dip galvanised steel or stainless steel. 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 and then the tank can be filled and inserted into the subframe. The filling of the tank is possible with flooring in different materials. Specifically, the "fireproof" version is equipped with additional fire protection, which can be easily inserted into the frame after assembly. Our certificate certifies that the PRO+ Fireproof manhole cover can withstand 120 minutes, thus making a significant contribution to fire safety. Areas of application: For both indoor and outdoor floor ducts where fire protection is required. Each manhole cover comes with tightening/lifting keys and an assembly manual. Dimensions: Customized sizes can be produced in every dimension upon enquiry.