Purchased a three pack of refrigerator water filters. The first one I installed leaked. Called and was told to return it at my expense. It was returned and I received credit. Installed the second one and it did not leak. Being a six month item, I installed the third one after six months and sure enough it leaked. Contacted vendor and was told there is no warranty after 30 days. Seems unethical to sell a product that they know will be out of warranty when used without informing the customer of the warranty shortcomings in advance.