Product review (1 stars): LG USA Made 5231JA2002A Replacement Filter purchase review
Quality control for this product is questionable. Found a dirt-like foreign material INSIDE the sealed plastic product protector.  Smaller similar material/substance found around the cylinder.  These could have easily gone inside the spout and who knows what this material is? I know the product is half the price of the genuine OEM filters but I would rather have that peace of mind knowing that the filter I am using is clean and defect free.