This is a replacement retainer ring for our 2-Piece Quick Disconnect Coupler Kit (Part No. 3608-002) or our 3-Piece Quick Disconnect Coupler Kit (Part No. 3608-003). Two-piece kits use one ring; three-piece kits use two.
Note: Sizes are not interchangeable. For example, a snap ring for 2" tubing will only fit in a coupler or sleeve for 2" tubing.