Spa Heater Element Fits most Flo-thru hot tub heaters. Incoloy 800 sheath provides superior corrosion resistance, along with epoxy potting (EP) top and bottom for the ultimate in protection. Features large O-Rings for sealing on imperfect surfaces, such as found in replacement applications. Features very easy to install dimensions, for difficult style housings. Coated for added protection from corrosion and calcification with proprietary ET material with PTFE (teflon). 9.9 inch overall length.

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