Product review (5 stars): Don't waste time on other options
Very nice product.  After reading many reviews regarding other replacement possibilities, I tried the Waterdrop.  The product performed as expected and with good results.  No leaks or other issues.  I recommend you read the instructions of the type of appliance that you will be installing the Waterdrop in.  Each appliance has a little bit different method of resetting the filter alarm.  Please note....This has nothing to do with the product.  They met the shipping expectation as well.