2 Pack FKM O-Ring For Gecko Aqua-Flo – Flo-Master – Circ-Master 1-1/2″ Union
This does not make it fake, or a Chinese knockoff, or USED. Opened and re-boxed, removed from a part of a larger assembly or just do not have a box at all anymore. Pictures are from actual part, you can see the real thing on them.