Specifications

4 Tubes plus a free Sample tube snapped in two or 3 pieces .like pictures Many uses for DIY Repair heat exchangers wired heat element fun experiments diy.all new I believe need to slow heat to higher the first time.i did my own testing 2200f is most likely the rated temperature.i cracked one at 3400f .aprox 6 inch long ,.41 inch diameter center hole j Just under 1/4 in. Use a tube cutter to cut to length and drill center hole a little larger if needed,All cut/ drill very carefully! They are fragile tubes if dropped or mishandled.

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