5 Stage Reverse Osmosis Filter Replacement Set (RFK-DRO5, Formerly ROFK5) Housing Size_10" Big Blue Only the UV lamp and

Only the UV lamp and quartz sleeve would be replaced annually for this ultraviolet water purifier resulting in less maintenance cost

Granular Activated Carbon Filter Cartridge

indicating it is time to replace the filter

normal sand

5-Inch Filter Cartridges Such As (Sold Separately):

5 Stage Reverse Osmosis Filter Replacement Set (RFK-DRO5, Formerly ROFK5) Housing Size_10" Big Blue Only the UV lamp andThis is a 4 filters set for a standard Reverse Osmosis Water Filtration Unit. The specifications of the set are as follows: Melt blown Polypropylene Sediment filters Sediment filter is often the first filter installed in the Reverse Osmosis circuit. Sediment filters are made of fine melted polypropylene, which is then blown and spun in a cylinder like form. The main function of a sediment filter is to remove large and fine particles from a drinking