2"Heater Tailpiece Uni-Nut
The Uni-Nut® is a one-piece nut.
Aquatemp Products Heater Uni-Nut®It is a patented design to end leaking split nuts on heaters.
The Uni-Nut® is a one-piece nut that can be tightened by hand and changed in the field by removing a color-coded retainer.
The black retainer is generally used on 1-5/8" tube while blue retainers are used on 5.5kW heaters.
Red retainers usually denote heaters of other wattages.
Although there may sometimes be exceptions, the Uni-Nut® is generally not a replacement for split nuts due to different flange sizes
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