A pressure flange is provided for installing toilets. The pressure flange includes a sealing ring disposed so as to make direct contact with a bottom of a toilet base. A rigid main column is configured to connect the toilet to a sewer line in a bathroom facility, with the column having an upper tube section with a larger inner diameter section above a vertical tube section having a smaller inner diameter. The column has an oval shaped collar at a top of the upper tube section, with the collar having oppositely extending ears. A flex-line type pressure gasket is disposed around at least the vertical tube section of the column. The pressure gasket is an accordion or corrugated-type of gasket that enables the pressure flange to be fitted into the sewer line by applying downward pressure, wherein the pressure flange can be installed without the use of tools by pushing the pressure flange down into the sewer line in the bathroom and tightening and connecting the pressure flange with anchor bolts and wing nuts to a toilet base.