Product review (5 stars): Purge a Few Gallons Before Drinking
Overall very happy with this product.  Replaced a more expensive Sears (Kenmore) brand filter.  Fit perfectly.  Instructions are a little sparse but then again there's not much to this.  Both this brand and the Kenmore brand recommend purging a few gallons of water through the system before use.  With the Kenmore filters I don't recall too much debris in the first batch of water.  With the Supco filter the first gallon was very cloudy grey.  I believe this is loose charcoal from the filter.  Either way, the water cleared up very quickly and quality now seems great.  Satisfied customer.