The TeeJet Series AA126 In Line Strainer is to be mounted on the inlet side of pumps and it screens out clogging particles before it enters the pump, preventing pump, nozzle and regulator damage that can be caused by debris and sediment. This line strainer reduces nozzle clogging, saving you time that you would spend clearing or rinsing the clogged nozzle. The AA126 strainer is a replacement for the AA124, which featured a poly head and nylon body with a maximum pressure of up to 150 psi. The AA126 is an improved version, as it features a glass-filled polypropylene head and body, increasing the maximum pressure up to 200 psi. The strainer comes with a stainless steel screen with a glass-filled polypropylene frame. Different screen sizes to choose from: Grey = 16 mesh screen ; Yellow = 30 mesh screen ; Red = 50 mesh screen ; Blue = 80 mesh screen ; Green = 100 mesh screen. Please specify which screen when ordering, unspecified orders will ship the Grey 16 mesh screen. Note: mesh sizes are wire per inch measurements. The higher the mesh number, the finer the screen is. It's recommended to use the Grey 16 mesh screen when using diaphragm pumps. Also, the filter should be rinsed often to prevent pump damage and gun and nozzle clogging.