The new Noritz America RPK-EXT external pump kit gives users time, water and energy-saving benefits of hot water recirculation on an even broader array of residential taknless water heaters, the company notes. Previously available only as a fully integrated circulator in the NRCP line of condensing tankless water heaters, the new RPK-EXT kit can now serve as a separate add-on component to 26 additional Noritz residential models.www.noritz.com
Noritz external pump kit
![Noritz external pump kit](http://www.pmmag.com/ext/resources/Issues/2021/04-April/Products/PM0421_Products_Noritz.jpg?1617933330)