Does Costco sell flow?

Excuse me, could you clarify something for me? I've been wondering if Costco carries the product called "flow" in their stores. Could you please let me know if they sell it? I'm particularly interested in this item and I'm curious as to whether I can find it at Costco or not. I've heard good things about it and I'm eager to try it out. Could you please help me with this information? I'd greatly appreciate it if you could confirm whether Costco stocks "flow" or not. Thank you in advance for your assistance.