A very economical and good quality purifier with 3 stages.in 1st stage is for removal of sand, dirt and rust particles and all type of sediments.in 2nd stage coconut shell granular activated carbon removes taste and odor.in 3rd Stage Ultra Violet Bacteria Killing System.this unit having wall mounted metal plate.this is a complete package with complete fitting material like fitting pipe, ELbows, outlet steel pipe, and housing key for changing cartridges at home by the user.