Abstract: This invention involves a pressure flange for installing toilets in order to avoid damaging the floor in the room in which the bathroom fitting is to be installed, make for easy installation and removal, with no need for tools and using downward pressure to secure it, all without using special tools or equipment, thereby offering innovative, clean, safe, quick and easy installation. The pressure flange can be used on any make or model of toilet with holes for seating that meet standards for this type of bathroom fitting in markets in Mexico, the United States and Canada, since it comes in a standard size for a perfect connection both to the toilet and for insertion into the sewer line in the room (bathroom).