Send me an email when my question is answered, Walmart Protection Plan options and pricing can be found on the product page, as well as in your cart. Already purchased your product? DuPont whole house water filter technology increases clarity of your entire home’s water by reducing sediment, which extends the life of appliances that process water. It would be best if you use AQUA CREST FXHSC 10″ x 4.5″ Whole House Water Filter which you can Buy from Amazon. 800 Series Water Filter. These filters and systems can also be used at the office. carbon helps the water taste better with less chlorine. This may be a little overkill but i had rather have safe chemical free water. List Price Price $56.15. Since I travel to many parts of the US I encounter all types of water quality. Most of DuPont’s whole house water filter is scheduled to be replaced every 3 months or 15,000 gallons of water. They added DuPont 800 series cartridge that eliminates rust and silt particles for improving tap and bathwater. Pressure 90 psi, Application Whole House, Service Life 15,000 gal, For Use With Whole House Universal, Compliance NSF 42, Package Quantity 2