Taco Plumb n’ Plug ® Wet Rotor Circulators periodically re-circulate hot water through the domestic piping system to decrease the delivery time to outlet fixtures and reduce wasted water. These UL-listed units feature quiet, efficient operation and low power consumption. Self lubricating, with no mechanical seal and Taco’s unique replaceable cartridge design, Plumb n’ Plug ® Wet Rotor Circulators are field serviceable and maintenance free. An optional 00 Timer/Aquastat is available for constant circulation applications to maintain temperature between 95ºF and 115ºF.