Water filter replacement screens allow you to replace worn or damaged filter screens without the inconvenience and cost of replacing the entire filter. These screens are designed to fit the T-style screen filters available from Sprinkler Warehouse. When selecting a replacement screen, it is important to remember that the higher the mesh number, the better the filtration. Irrigation sand separators are used to remove small particles like dirt and sand from the water line for the irrigation system. These irrigation sand separator filters are replaceable when they become damaged or word out.