Known as the “CAFS Stack” the Model ST-185-XD-CAFS Smooth Bore tip features a 1-1/8” base tip topped with a 15/16” tip. These two orifice sizes when paired with a 1.5” XD full round ball shutoff give you the most ideal tip sizes for the application of Compressed Air Foam (CAF). Tip features easy to read laser etching of discharge sizes and flow rates. 7.625” long. 1.5” NH female rigid inlet.