Pride Plumbing came out and provided a cost estimate to replace two 40-gallon electric Rheem 82SV50-2 lowboy water heaters with two new 40-gallon electric lowboy models (this would include removing and disposing of the old water heaters; installing a rubber water heater pad, the new water heaters, new ball water shut-off valves, new PEX and stainless steel water supply lines to the water heaters' water connections, a thermal expansion tank, new brass drain valves, connecting the units' electrical connections, bleeding the air out of the water lines, ensuring that the units’ temperature and pressure (T&P) relief valves were properly vented, and setting the units to their appropriate operating temperatures).