Read the following passage and answer if the question is true or false.
Passage: A check valve, clack valve, non-return valve, reflux valve, retention valve or one-way valve is a valve that normally allows fluid (liquid or gas) to flow through it in only one direction.

Question: is check valve and non return valve same?

Is the answer True or False? Respond with only "True" or "False" and no additional text.
True
False.