1-1/2" Heater Uni-Nut
THIS IS NOT A SPLIT NUT.
It is a heater uni-nut that will slide over the metal flange of a heater and then not slide back due to the use of a retaining ring (shown as an accessory)
IT HAS A 2-7/8" DIAMETER BUT IS KNOWN AS A 1-1/2" NUT.
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