Union Tailpiece, 2"
For 2" heater connections. The threads measure 3" Outside Diameter.
For 2" heater connections. The threads measure 3" Outside Diameter. The tailpiece is a 2" slip fitting.
2" connections are the most common heater size, and will work for most Gecko, Balboa, Hydroquip, Waterway and other spa heaters.
2" Gaskets with raised o-rings are available here.