The Rinnai 104000288 Water Heater RUR Pump Replacement Kit is designed to restore proper recirculation performance in compatible Rinnai tankless water heaters. This replacement kit includes the components required to replace the recirculation pump, which moves hot water through the system to support faster hot water delivery and maintain consistent circulation. Installed within the wa... https://www.hnkparts.com/104000288-rennai-rur-pump-replacement-kit-sense