R106A Aboveground Pool/Spa Heater Analog Control - 105,000 BTUs - Natural Gas - 0-4999 Feet state_New Mexico This is a Zodiac W151211

This is a Zodiac W151211 O-Ring for Duoclear Water Sanitizer Electrode

And the filter screen is easy to remove and clean

Pentair/Rainbow R18608

Over application may lead to opposite affect

3 Ferrules 1/4 inch

R106A Aboveground Pool/Spa Heater Analog Control - 105,000 BTUs - Natural Gas - 0-4999 Feet state_New Mexico This is a Zodiac W151211The Raypak R106A Aboveground Natural Gas Pool or Spa Heater is 106,000 BTUs and has analog control. The simple round manual thermostat is very easy to use. Simply turn the dial to the desired temperature and let the thermostat take over. Even though the control is simple, it does have state of the art electronic control that is built in. And these parts have stood the test of time with no mechanical parts to break down or wear out. These Raypak