R-150, Caribbean Clear & many competitors

Replacement electrode for the old R-150 electrode (the original Clearwater model nearly 30 years ago) and many competitors.  Will work on the Caribbean Clear units, however the temperature readout capabilities on the R-50 will not work.  Electrodes are 3” long with 1 ½” “half-moon” in diameter.  Sealed in a threaded 2” plug.  Screws into any 2” threaded tee.  Requires Teflon tape when screwing into tee.   Schedule 40 PVC.  Price includes free shipping in the USA.