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Internal dimensions lxwxh=200x16x60cm. External dimensions lxwxh=200x30x75cm. Joint provided with rubber EPDM seal. Buffer volume 93 l/m. Infiltration area 0.28m2 per side per meter. Minimum infiltration capacity 100 l/h per m. Strength class > 400kN (tested according to EN1433). Equipped with water-permeable porous concrete paving stones 20x20cm in the walls. Weight 620kg. Concrete strength C60/75. Environmental class EE3.
