AR2543 Ceramic Piston Kit (22mm, 3-Pack)

OEM Annovi Reverberi piston kit for 22mm pump cylinders. Kit includes 3 ceramic pistons with backup rings, O-rings, slingers, washers, and nuts. Compatible with AR XW, XWA, XWAM, XWT, XWF, XWL, and XWLA Series pumps with 22mm plungers (verify your pump plunger diameter before ordering, as some models have 20mm variants). Cross-reference: Karcher 8.720-631.0.