AC14HCA Spool Cap for Ryobi One+ 18V, 24V, 40V cordless strimmers. AC14HCA Replacement Spool Cap replaces part numbers: 522994001, 993373001, 3411546-7G, HM3411546BG, 341156AG, 3411546CG and 3411546BG. Compatible with Ryobi 18V String Trimmer models P2000, P2001, P2002, P2003, P2004, P2005, P2006, P2200, P2006A; 24V Cordless Trimmer / Edger models RY24000, RY24020, RY24021, RY24200; 40V String Trimmer / Edger models RY40001, RY40021, RY40200, RY40201, RY40210, RY40210A. Replacement spool cap for RYOBI cordless auto-feed trimmer. Grass Trimmer Spool Cap made of high quality ABS material, durable for use. 522994001 Replacement Spool Cap helps protect the string trimmer line and spool, prevents debris from getting stuck, and helps avoid damage to the trimmer. Easy to install with no tools required. Simply remove the old cap and snap the new one into place. Color: grey. Material: ABS. Package includes: 6 x Cap Covers. Only the listed items are included; other products are not included. Note: Lighting and display settings may cause slight color variations between the image and the actual item. Measurement may vary by +/- 1-3 cm.