Complete water purification system composed of 250 series ultra violet water purifier and twin bank of 10 inch filters composed of 1-5 micron particulate and 1-5 micron carbon block filter. Additional combinations of filters available to meet specific needs including Mesa"s 6 stage 10 inch filter consisting of 1 micron prefilter, granular activated carbon, ion exchange, KDF55, KDF85 and final 1 micron particulate filters at additional cost. Price break on initial order a special filters. Filters for removal of sulfur, iron, arsenic and water hardness can be filtted for system, please send inquiry by e-mail stating specifics on water quality.