Connection of plumbing to existing pipes (Domestic application only) is included. All extras are available if required, including: 15mm tempering valve ($185), pressure limit valve ($125), non-return isolation valve ($110). Pipe upgrades always comply with Australian plumbing standards. Concrete slabs, leveling material, including additional labour for lifting into position, or carpentry & building alterations if required, will be advised. These additional items will be priced and agreed on prior to starting the installation. Package price includes standard removal and disposal of old water heater from site.