Hydro-Quip - Spa Heater Union Snap Nut, Black, 3in

Hydroquip 3"" Snap Nut or Lock Ring for 3"" spa heater unions. Black 3"" union nut is a patented union nut repair to replace broken or cracked union nuts (lock ring) without cutting pipes and replumbing. Disconnect the union, slide the Snap Nut in place and insert the locking section to secure it in place firmly and without leaks. Hydroquip 42-0042 fits 3"" unions with 3-5/8"" FBT threads.