Graco LTX451 RAC X SwitchTip, a reversible (clog-clearing) airless spray tip, part number LTX451, with a 0.051 in. (1.3 mm) orifice and a 8 in. (203.2 mm) spray fan width. Maximum working pressure 4050 psi (280 bar). The tip number 451 encodes the size: the first digit (4) doubled gives the 8 in. fan width and the last two digits (51) give the 0.051 in. orifice. The spray pattern size measured on the Graco page is 8 to 10 in. The reversible design lets the tip be rotated to clear a clog without removing it. For use with RAC X HandTite Tip Guard.