Product review (5 stars): You get what you pay for.
Although it may cost a few pennies more, we have learned to never buy an off-brand refrigerator filter again. After getting our new fridge, and using the OEM filters for 3-5 months (can't remember exactly how long), we had to replace it. The store recommended an off-brand, so we tried it. In no time at all, we were noticing hard water deposits on the drip tray, which in the previous months of using the OEM, had never appeared. We took the off-brand filters back to the store, purchased these, (cleaned the drip tray), and have had no repeat experience of hard water deposits in the drip tray.