Installed a new Navien tankless water heater with all required, code-compliant upgrades. After installation, the system was tested and no leaks were found. Installed a new pressure reducing valve (PRV) and verified water pressure at a safe 60 PSI. Installed a new Halo 5 whole-home filtration system with a new bypass and boiler drain. System was tested after installation and confirmed leak-free. Installed three new Kohler Kingston toilets (master bathroom, guest bathroom downstairs, and guest bathroom upstairs) using new wax rings, closet bolts, and supply lines. All toilets were tested and found to be operating properly with no leaks. Installed a new reverse osmosis system under the kitchen sink. System was tested for leaks, confirmed to be operating correctly, and the customer was advised on the proper startup and maintenance process. Customer was informed to call with any questions or concerns.