Hot Tub Spa 2" X 1 1-2" Slip Heater Union and Gasket How to Video 3" O.D.

You are buying on a 2" Threaded Side x 1 1/2" Slip Heater Union with Gasket that matches Union. The Union receives a 1 1/2" pipe that would be about 1 7/8" on the outside into the fitting on one side and then Screws to a 2" Heater Flange Split Nut on the other side. It will Glue to a 1 1/2" Pipe or Slice and screw to a 2" Heater Flange fitting. Don't be confused we also offer a Heater union that is 1 1/2" Slip X 1 1/2" to Heater or a 2" Slip X 2" Heater Union. If your plumbing is 1 1/2" and your heater is 2" this part is correct. This version is the 3rd most popular version. 1 1/2 x 1 1/2 is 2nd most popular and 2" X 2 is 1st most popular. This part is used in hot tubs to plumb to a heater flange. For a video about this part search YouTube for: Hot Tub Spa Parts Heater Union 2" X 1 1/2" Slip Information The Hot Tub Professor