This Item is a 3/4" Threaded Flow Switch with Housing that is found in Jacuzzi Premium, Sundance Spas and a Few other Brands.

The Housing is 3/4" Barb X 3/4" Barb X 3/8" Barb.

Note: Some housings don't have the 3/8" Barb if yours doesn't you need to find the other one that doesn't have the 3/8" barb.

This is a normally open switch that is closed by water movement from the heating pump in the Hot Tub. This Switch features Box Style connector ends that are found on Sentry 850 Systems but we include 2 Pinch Style connectors incase you have a different syle plug end to mate the wires together, If your Flow Switch has Curley finger style found on a LX System then look for the other verison with the Curley Fingers. The Treaded part of the Switch is 3/4" mpt and can be removed from this housing to be used in another housing.

Also NOTE: Older Sundance and Jacuzzi Hot tubs had PCV Build Housings this housing is the replacement. If you plan on installing this switch into an old housing measure the threads to be sure this fits I have seen 1/2" MPT Threads on Flow Switches also. Note: Other parts seen in the pictures are not included and are for reference only.