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![NBR O-ring 40.5 x 4.5mm (OD 49.5mm) 70 Shore A [20 Pieces]](/web/image/product.product/150751/image_1024/%5BS24QT-X20%5D%20NBR%20O-ring%2040.5%20x%204.5mm%20%28OD%2049.5mm%29%2070%20Shore%20A%20%5B20%20Pieces%5D?unique=9857ddd)