Opens from below (inside the building/reservoir) - civil works opening 600x600 - overall 740x740, 130 mm thick - load 250 kg/m² GRP cover - 2 lateral hold-open stays + 2 hinges in 316L stainless steel - folding handle + 304 stainless steel latch on the underside - water/dust seal To comply with the standards, follow the recommendations on the drawing: ID - F 0323