just to be sure it's Westinghouse
Means the same as the phrase, "just to be sure"; the "it's Westinghouse" part originated from television commercials for Westinghouse Electric in the 1950s, who's catchphrase was, "You can be sure, if it's Westinghouse".
{Craig}: Hey Paul, did you remember to charge your wheelchair today?
{Paul}: I think so but let me check just to be sure it's Westinghouse.
{Paul}: I think so but let me check just to be sure it's Westinghouse.
just to be sure it's Westinghouse by Telephony July 28, 2014
Get the just to be sure it's Westinghouse mug.