Description
This premium heater union features a 1 1/2" Threaded connection measuring approximately 2 3/8" OD paired with a 1 1/2" Slip connection measuring approximately 1 7/8" ID, complete with gasket included. The slip side accommodates a 1 1/2" pipe or fitting with 1 7/8" Outside Diameter, while the threaded side connects to a 1 1/2" Heater Flange Split Nut measuring approximately 2 3/8" inside diameter. This union bonds via glue on the slip side to 1 1/2" pipe and threads onto the 1 1/2" Heater Flange on the opposite end. Please note: Global also stocks alternative heater unions including 1 1/2" Threaded x 1" Slip, 1 1/2" Slip x 2" Heater, and 2" Slip x 2" Heater Union configurations. When both your plumbing and heater measure 1 1/2", this union is your ideal match.
Commonly installed in 115V plug-in hot tub systems.
This configuration ranks as the most widely used version. The 1 1/2" Threaded x 1 1/2" Slip specification leads the market.
Essential component for connecting spa plumbing systems to heater flanges in hot tub installations.
Reference this sizing chart for measuring your existing plumbing pipes to determine correct part dimensions. Important note: Nominal fitting sizes refer to the Inside Diameter of the pipe that inserts into the fitting, not the visible outside measurement of your existing pipe.
