2" Spa Hot Tub Heater Split Nut Union amp O-Ring Gasket Pair Balboa Gecko

You are buying a 2" Heater Split Nut Kit which includes the split nut , (2) Screws and a gasket for use with a 2" Heater Union. The Heater Flange Split Nut mounts to the heater tube using 2 screws to hold it in place and screws onto the heater threaded union with a gasket between the union and tube. If your plumbing is 2" and your heater is 2" this part is correct. This version is the most popular version. 1 1/2 x 1 1/2 is 2nd most popular and 1 1/2" X 2 is 3rd most popular.This part is used in hot tubs to plumb a heater tube to a heater union.