This RIDGID 37313 Rp-210 O-Ring (4x1.5mm) is a genuine part manufactured by RIDGID. This Repair Part is designed to repair or replace the damaged O-Rings, and keep the intended tool properly sealed and functioning. The RIDGID 37313 Rp-210 O-Ring (4x1.5mm) prevents your tool from further malfunction and is fully covered under RIDGID's lifetime warranty, giving you the peace of mind that comes with the quality of all RIDGID products. For the most convenient and easiest online ordering of service RIDGID parts, look no further. Plumbersstock.com has an extensive list of over 600 RIDIGD Repair and Replacement Parts.