Product review (5 stars): Super Value!
I was very overdue on replacing my filter, primarily because filters are so expensive!  I found the Supco filter and after trying it am very pleased with the result.  Immediately after installation, the water flowed very quickly through the filter (it was coming out as a trickle through the old filter).  Water tastes great.  These filters are half the cost of Whirlpool filters.  Delivery was prompt and as promised.  Will order these again.