Refrigerator water filters: Huge price differences, OK to buy off-brands? homeowners

My fridge takes a Whirlpool 4396508 water filter. The part is $45 new. However, Amazon sells the following: EcoAqua $12.48, PerfectPure $13.99, IcePure $10.00. What gives? Reviews for all look great, but I don't know if the internals can be trusted.

Submitted August 10, 2016 at 06:30PM by David722 http://ift.tt/2aK3H6t homeowners