Here is the 1.5" Spa and Hot Tub Heater Split Nut, made by Waterway Plastics. This will replace Split Nuts found on heater assembklies made by Balboa, Gecko, Hydro-Quip, Spa Builders, Correct=Tech and many others. When ordering it is importamt to know, actual thread measurements on any 1.5" Split Nut is approximately 2 3/8" . Purchase more then one split nut and receive an extra 5% bulk discount, as always save big with out Free Shipping, just a one time $4.95 Handling Fee applies.
***** Important Note**** All 1.5" Split Nuts measure approximately 2 3/8" at the thread