Where can I see the return policy.
Costco Return Policy
"We guarantee your satisfaction on every product we sell with a full refund. The following must be returned within 90 days of purchase for a refund: televisions, projectors, computers, cameras, camcorders, touch screen tablets, MP3 players and cellular phones."
This basically translates into a lifetime return policy for everything but the exceptions noted.
Unfortunately this means that people also take advantage of the policy as well. I've seen years old barbeque grills, old patio furniture, etc. being returned for full credit. I've also heard of a customer who returned a 10 year old mattress set for a full refund.