Block particulates in the water before they can clog and potentially damage emitters by putting a Y filter in place. The Y filter can be flushed out by removing the flush cap and running water through; it features a 150-mesh polyester screen that can be removed from the housing for cleaning and maintenance. The Y filter connects to a 3/4 in. FPT connection point on a spigot or pipe, and has a flow range from 0 to 10 GPM. The Y filter is made of ABS and the filter screen is made of durable polyester.