5229AR79B4 NON RETURN VALVE - Shower drain flanges version from 0 75 mm to 0 80 mm "NRV" sylicon mechanical anti-smell non-returnvalve. Universal retro-fit version Technical data sheet Specific description Material Color Application Logistics information Product weight (kg) 0,043 La Bonomini srl si riserva il diritto di modifica senza preawiso. Ogni riproduzione, anche parziale, e severamente vietata. The company Bonomini srl reserves the right to make modifications without prior notice. Any reproduction, even partial, is strictly prohibited. Universal retro-fit version ABS + SILICON WHITE + GREEN To stop bad smells