 In a redhibitory action, the buyer demands a full refund or a reduction in the purchase price because the product has a hidden defect (redhibitory defect) that prevents it from performing the task for which it was purchased.Most consumer products carry an implied warranty of merchantability.If a product is so substantially defective that the buyer would not have bought it in the first place had they known of its defects, there may be grounds for filing such a suit.