Powerful 2 Stage Whole House Water Purification system with 3/4. Comes with 1 Year filter supply. 1st Stage: Quick-Connect 5 micron sediment filter. Dust, dirt, silt, sand, rust and scale particles are trapped here in a filter which also extends the life of the system. 2nd Stage: Premium 5 Micron High Dirt Capacity CTO Block Filter (10″x2.5″). Whole House filter system uses standard 10″x2.5″ cartridges. We always reply to messages promptly. Our goal is to make every customer 100% satisfied with their order. If you are not satisfied, please let us know before leaving feedback. The item “Reverse Osmosis Revolution Dual Stage Whole House Water Purification System” is in sale since Saturday, February 13, 2021. This item is in the category “Home & Garden\Kitchen, Dining & Bar\Small Kitchen Appliances\Water Purification\Water Filters”. The seller is “josebcs” and is located in Hesperia, California. This item can be shipped to United States.