Product review (5 stars): Worth the money!
This shield helped us save our fridge!  When we bought the house we had to change the water filter and get the water line cleared (unfrozen), and now we have delicious drinking water.  Putting in a little elbow grease saved us from having to pay for an expensive repairman come out to the house or from having to buy a new fridge out of pure desperation.  Definitely worth the money.