How to display a product if the property is not empty in Bitrix?

Question

1C-Bitrix

Hello. How can I select a product if the property is not empty?
The infoblock property has the value Price without discount, number type, this property can be empty for the product or with a numeric value. I set a filter, if the movie has a specific person, then it works how to display the product if the property is filled?

global $arrFilter;
$arrFilter = Array( 
 	"PROPERTY_103" => 70,
);

Answer 1

global $arrFilter;
$arrFilter = Array(
"!PROPERTY_103" => false,
);