This auction is for a BRAND NEW IN OPEN BOX Aquasana whole house water filter model WH-1000. This unit replaces model WH-1000R and has a filtration capacity of 1,000,000 gallons. The box was opened only to get pictures for this listing. Please double-check that this filter will fit your application BEFORE bidding. Please look at all the pictures as they are considered to be part of the description and to better see the overall condition of the item and ask any questions BEFORE bidding. Thanks for looking and happy bidding!