This AO Smith Whole House Salt Free Descaler System is the perfect addition to your home's plumbing and fixtures. Compatible with brands such as Aqua Optima and Brita, this black plastic unit is suitable for filter jugs and uses GAC filtration method. It is designed to work with both city and well water, making it a versatile option for any household. The AO-WH-DSCLR is new in the box with the instructions, hose adapter, and nipple piece. It does not have the shut off valve accessory. It is shipped in the manufacturers box as shown See photos